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/*! caminos-lib ===== This crate provides the CAMINOS simulator as a library. This is the Cantabrian Adaptable and Modular Interconnection Open Simulator. # Usage This crate is `caminos-lib`. To use it add `caminos-lib` to your dependencies in your project's `Cargo.toml`. ```toml [dependencies] caminos-lib = "0.2" ``` Alternatively, consider whether the binary crate `caminos` fits your intended use. # Breaking changes ## [0.1.0] to [0.2.0] * Added methods to `Routing` and `Router` traits to gather statistics. * Added method `Routing::performed_request` to allow routings to make decisions when the router makes a request to a candidate. * Added `ConfigurationValue::NamedExperiments(String,Vec<ConfigurationValue>)`. * Removed surrounding quotes from the config `LitStr` and `Literal`. * Now `neighbour_router_iter` must always be used instead of `0..degree()` to check ports to other routers. Note that `degree` does not give valid ranges when having non-connected ports, as in the case of some irregular topologies as the mesh. * `Plugs` now include a `stages` attribute. * Removed from the `Topology` interfaz the never used methods `num_arcs`, `average_distance`, `distance_distribution`. # Public Interface `caminos-lib` provides the functions `directory_main` and `file_main`, intended to use the file version when the final binary calls with a configuration file argument and the directory version when it is called with a directory argument. The `directory_main` function receives a `&Path` assumed to contain a `main.cfg`, `main.od`, optionally `remote`, plus any generated files and subdirectories. * `main.cfg` contains the definition of the experiment to perform, expected to unfold into multiple simulations. * `main.od` contains the definition of what outputs are desired. For example `csv` files or (`pdf`,`latex`)-plots. * `remote` allows to define a remote from which to pull result files. * `journal`tracks the actions performed on the experiment. It is specially useful to track what execution are currently launched in what slurm jobs. * `runs/job<action_index>/launch<experiment_index>` are the scripts launched to slurm. `action_index` is number of the current action. `experiment_index` is expected to be the experiment index of one of the experiments included in the slurm job. * `runs/job<action_index>/launch<experiment_index>-<slurm_index>.{out,err}` are the outputs from scripts launched to slurm. The `slurm_index` is the job id given by slurm. * `runs/run<experiment_index>/local.cfg` is the configuration exclusive to the simulation number `experiment_index`. * `runs/run<experiment_index>/local.result` will contain the result values of the simulation number `experiment_index` after a successful simulation. The `directory_main` receives also an `Action`. In the crate `caminos` this is done via its `--action=<method>` falg. * `local_and_output` runs all the remaining simulations locally and generates the outputs. * `local` runs all the simulations locally, without processing the results afterwards. * `output` processes the currently available results and generates the outputs. * `slurm` launches the remaining simulations onto the slurm system. * `check` just shows how many results we got and how many are currently in slurm. * `pull` brings result files from the defined remote host. * `remote_check` performs a `check` action in the remote host. * `push` compares the local main.cfg with the host remote.cfg. It reports discrepancies and create the remote path if missing. * `slurm_cancel` executes a `scancel` with the job ids found in the journal file. # Configuration Syntax The configuration files are parsed using the `gramatica` crate. These files are parsed as a `ConfigurationValue` defined as following. ``` pub enum ConfigurationValue { Literal(String), Number(f64), Object(String,Vec<(String,ConfigurationValue)>), Array(Vec<ConfigurationValue>), Experiments(Vec<ConfigurationValue>), NamedExperiments(String,Vec<ConfigurationValue>), True, False, Where(Rc<ConfigurationValue>,Expr), Expression(Expr), } ``` * An `Object` os typed `Name { key1 : value1, key2 : value2, [...] }`. * An `Array` is typed `[value1, value2, value3, [...]]`. * An `Experiments` is typed `![value1, value2, value3, [...]]`. These are used to indicate several simulations in a experiment. This is, the set of simulations to be performed is the product of all lists of this kind. * A `NamedExperiments`is typed `username![value1, value2, value3, [...]]`. Its size must match other `NamedExperiment`s with the same name. Thus if there is `{firstkey: alpha![value1, value2, value3],secondkey: alpha![other1,other2,other3]}`, then the simulations will include `{firstkey:value1, secondkey:other1}` and `{firstkey:value3,secondkey:other3}` but it will NOT include `{firstkey:value1,secondkey:other3}`. * A `Number` can be written like 2 or 3.1. Stored as a `f64`. * A `Literal` is a double-quoted string. * `True` is written `true`a and `False` is written `false`. * `Expression` is typed `=expr`, useful in output descriptions. * The `Where` clause is not yet implemented. ## Experiment example An example of `main.cfg` file is ``` Configuration { random_seed: ![42,43,44],//Simulate each seed warmup: 20000,//Cycles to warm the network measured: 10000,//Cycles measured for the results topology: RandomRegularGraph//The topology is given as a named record { servers_per_router: 5,//Number of host connected to each router routers: 500,//Total number of routers in the network degree: 10,//Number of router ports reserved to go to other routers legend_name: "random 100-regular graph",//Name used on generated outputs }, traffic: HomogeneousTraffic//Select a traffic. e.g., traffic repeating a pattern continously. { pattern: ![//We can make a simulation for each of several patterns. Uniform { legend_name:"uniform" }, RandomPermutation { legend_name:"random server permutation" }, ], servers: 2500,//Servers involved in the traffic. Typically equal to the total of servers. //The load offered from the servers. A common case where to include many simulation values. load: ![0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0], message_size: 16,//The size in phits of the messages created by the servers. } maximum_packet_size: 16,//Messages of greater length will be broken into several packets. router: Basic//The router is another object with a large description { //The number of virtual channels. The basic router sets a buffer for each virtual channel in each port, both at input and output. virtual_channels: 6, //Policies that filter the candidate routes given by the routing algorithm. They may be used to break deadlock or to give preference to some choices. virtual_channel_policies: [ WideHops{width:1}, LowestSinghWeight{extra_congestion:0, extra_distance:0, aggregate_buffers:true, use_internal_space:true}, Random ], delay: 0,//not actually implemted in the basic router. In the future it may be removed or actually implemented. buffer_size: 64,//phits available in each input buffer bubble: false,//to enable bubble mechanism in Cartesian topologies. flit_size: 16,//set to maximum_packet_size to have Virtual Cut-Through. intransit_priority: false,//whether to give preference to transit over injection. allow_request_busy_port: true,//whether to allow input buffer to make requests to ports that are transmitting output_buffer_size:32,//Available phits in each output_buffer. output_priorize_lowest_label: true,//whether arbiters give priority to requests with lowest label. }, routing: ![//Algorithm to provide candidate exit ports. Shortest { legend_name: "shortest" }, Valiant { //The meta-routing by Valiant in which we sent shortest to a random middle router //And then shortest from the middle to the destination. first: Shortest,//We can change the sub-routing in either the first or second segment. second: Shortest,//If we do not have arguments we only put the object name. No need for braces. legend_name: "generic Valiant", }, ], link_classes: [ //We can set the delays of different class of links. The number of classes depends on the topology. LinkClass { //In random regular graphs all router--router links have the same class. delay:1, }, //The last class always correspond to the links between server and router LinkClass { delay: 1}, //In a dragonfly topology we would have 0=server, 1=routers from same group, 2=routers from different groups. ], launch_configuration: [ //We may put here options to send to the SLURM system. Slurm { job_pack_size: 2,//number of simulations to go in each slurm job. time: "1-11:59:59",//maximum time allocated to each slurm job. }, ], } ``` ## Example output description An example of output decription `main.od` is ``` [ CSV//To generate a csv with a selection of fields { fields: [=configuration.traffic.pattern.legend_name, =configuration.traffic.load, =result.accepted_load, =result.average_message_delay, =configuration.routing.legend_name, =result.server_consumption_jain_index, =result.server_generation_jain_index, =result.average_packet_hops, =result.average_link_utilization, =result.maximum_link_utilization], filename: "results.csv", }, Plots//To plot curves of data. { selector: =configuration.traffic.pattern.legend_name,//Make a plot for each value of the selector kind: [ //We may create groups of figures. //In this example. For each value of pattern we draw three graphics. Plotkind{ //The first one is accepted load for each offered load. //Simulations with same parameter, here offered load, are averaged together. parameter: =configuration.traffic.load, abscissas: =configuration.traffic.load, label_abscissas: "offered load", ordinates: =result.accepted_load, label_ordinates: "accepted load", min_ordinate: 0.0, max_ordinate: 1.0, }, //In this example we draw message delay against accepted load, but we //continue to average by offered load. The offered load is also used for //the order in which points are joined by lines. Plotkind{ parameter: =configuration.traffic.load, abscissas: =result.accepted_load, label_abscissas: "accepted load", ordinates: =result.average_message_delay, label_ordinates: "average message delay", min_ordinate: 0.0, max_ordinate: 200.0, }, ], legend: =configuration.routing.legend_name, prefix: "loaddelay", backend: Tikz { //We use tikz to create the figures. //We generate a tex file easy to embed in latex document. //We also generate apdf file, using the latex in the system. tex_filename: "load_and_delay.tex", pdf_filename: "load_and_delay.pdf", }, }, Plots { selector: =configuration.traffic.pattern.legend_name,//Make a plot for each value of the selector //We can create histograms. kind: [Plotkind{ label_abscissas: "path length", label_ordinates: "amount fo packets", histogram: =result.total_packet_per_hop_count, min_ordinate: 0.0, //max_ordinate: 1.0, }], legend: =configuration.routing.legend_name, prefix: "hophistogram", backend: Tikz { tex_filename: "hop_histogram.tex", pdf_filename: "hop_histogram.pdf", }, }, ] ``` # Plugging Both entries `directory_main` and `file_main` receive a `&Plugs` argument that may be used to provide the simulator with new implementations. This way, one can make a copy of the `main` in the `caminos` crate and declare plugs for their implemented `Router`, `Topology`, `Routing`, `Traffic`, `Pattern`, and `VirtualChannelPolicy`. */ pub use quantifiable_derive::Quantifiable;//the derive macro pub mod config_parser; pub mod topology; pub mod traffic; pub mod pattern; pub mod router; pub mod routing; pub mod event; pub mod matrix; mod output; pub mod quantify; pub mod policies; pub mod experiments; pub mod config; use std::rc::Rc; use std::boxed::Box; use std::cell::{RefCell}; use std::env; use std::fs::{File}; use std::io::prelude::*; use std::io::{stdout}; use std::collections::{VecDeque,BTreeMap}; use std::ops::DerefMut; use std::path::{Path}; use std::mem::{size_of}; use std::fmt::Debug; //use std::borrow::Cow; use rand::{StdRng,SeedableRng}; use config_parser::{ConfigurationValue}; use topology::{Topology,new_topology,TopologyBuilderArgument,Location, multistage::{Stage,StageBuilderArgument}}; use traffic::{Traffic,new_traffic,TrafficBuilderArgument,TrafficError}; use router::{Router,new_router,RouterBuilderArgument,TransmissionFromServer,TransmissionMechanism,StatusAtEmissor}; use routing::{RoutingInfo,Routing,new_routing,RoutingBuilderArgument}; use event::{EventQueue,Event}; use quantify::Quantifiable; use experiments::{Experiment,Action,ExperimentOptions}; use policies::{VirtualChannelPolicy,VCPolicyBuilderArgument}; use pattern::{Pattern,PatternBuilderArgument}; use config::flatten_configuration_value; #[derive(Clone,Quantifiable)] struct ServerStatistics { created_phits: usize, consumed_phits: usize, consumed_messages: usize, total_message_delay: usize, } impl ServerStatistics { fn new()->ServerStatistics { ServerStatistics{ created_phits:0, consumed_phits:0, consumed_messages:0, total_message_delay:0, } } fn reset(&mut self) { self.created_phits=0; self.consumed_phits=0; self.consumed_messages=0; self.total_message_delay=0; } } ///The objects that create and consume traffic to/from the network. #[derive(Clone,Quantifiable)] pub struct Server { ///The index of the server in the network. index: usize, ///To which router the server is connected + link class index. Although we could just compute with the topology each time... port: (Location,usize), ///Known available capacity in the connected router. router_status: router::StatusAtServer, ///Created messages but not sent. stored_messages: VecDeque<Rc<Message>>, ///The packets of the message that have not yet been sent. stored_packets: VecDeque<Rc<Packet>>, ///The phits of a packet being sent. stored_phits: VecDeque<Rc<Phit>>, ///For each message we store the number of consumed phits, until the whole message is consumed. consumed_phits: BTreeMap<*const Message,usize>, ///Statistics local to the server. statistics: ServerStatistics, } impl Server { ///Consumes a phit fn consume(&mut self, phit:Rc<Phit>, traffic:&mut dyn Traffic, statistics:&mut Statistics, cycle:usize, topology:&Box<dyn Topology>, rng: &RefCell<StdRng>) { self.statistics.consumed_phits+=1; statistics.consumed_phits+=1; let message=phit.packet.message.clone(); let message_ptr=message.as_ref() as *const Message; //println!("phit consumed at server {}: stats {:?}",self.index,statistics); let cp=match self.consumed_phits.get(&message_ptr) { None => 1, Some(x) => x+1, }; if cp==message.size { //The whole message has been consumed self.statistics.consumed_messages+=1; statistics.consumed_messages+=1; self.statistics.total_message_delay+=cycle-message.creation_cycle; statistics.total_message_delay+=cycle-message.creation_cycle; self.consumed_phits.remove(&message_ptr); if !traffic.try_consume(message,cycle,topology,rng) { panic!("The traffic could not consume its own message."); } if !phit.is_end() { panic!("message was consumed by a non-ending phit."); } } else { self.consumed_phits.insert(message_ptr,cp); // Usually len==1 //let n=self.consumed_phits.len(); //if n>1 //{ // println!("server.consumed_phits.len()={}",n); //} } if phit.is_end() { statistics.consumed_packets+=1; let hops=phit.packet.routing_info.borrow().hops; statistics.total_packet_hops+=hops; if statistics.total_packet_per_hop_count.len() <= hops { statistics.total_packet_per_hop_count.resize( hops+1, 0 ); } statistics.total_packet_per_hop_count[hops]+=1; if cp < phit.packet.size { println!("phit tail has been consuming without haing consumed a whole packet."); } } } } //impl Quantifiable for Server //{ // fn total_memory(&self) -> usize // { // return size_of::<Server>() + self.stored_messages.total_memory() + self.stored_packets.total_memory() + self.stored_phits.total_memory() + self.consumed_phits.total_memory(); // } // fn print_memory_breakdown(&self) // { // unimplemented!(); // } // fn forecast_total_memory(&self) -> usize // { // unimplemented!(); // } //} ///An instantiated network, with all its routers and servers. pub struct Network { ///The topology defining the conectivity. pub topology: Box<dyn Topology>, //XXX The only reason to use Rc instead of Box is to make them insertable on the event queue. Perhaps the Eventful should be Box<MyRouter> instead of directly MyRouter? Or maybe storing some other kind of reference to the RefCell or the Box? ///TThe collection of all the routers in the network. pub routers: Vec<Rc<RefCell<dyn Router>>>, //routers: Vec<Box<RefCell<dyn Router>>>, ///TThe collection of all the servers in the network. pub servers: Vec<Server>, } impl Quantifiable for Network { fn total_memory(&self) -> usize { let mut total=size_of::<Box<dyn Topology>>() + self.topology.total_memory() + self.routers.total_memory() + self.servers.total_memory(); //let mut phit_count=0; for router in self.routers.iter() { total+=router.as_ref().total_memory(); let rb=router.borrow(); for phit in rb.iter_phits() { total+=phit.as_ref().total_memory(); //phit_count+=1; if phit.is_end() { let packet=phit.packet.as_ref(); total+=packet.total_memory(); } } } for server in self.servers.iter() { for phit in server.stored_phits.iter() { total+=phit.as_ref().total_memory(); } for packet in server.stored_packets.iter() { total+=packet.as_ref().total_memory(); } for message in server.stored_messages.iter() { total+=message.as_ref().total_memory(); } for (_message_ptr,_) in server.consumed_phits.iter() { total+=size_of::<Message>(); } } //println!("phit_count={}",phit_count); total } fn print_memory_breakdown(&self) { unimplemented!(); } fn forecast_total_memory(&self) -> usize { unimplemented!(); } } ///Minimal unit to be processed by the network. ///Not to be confused with flits. #[derive(Quantifiable)] #[derive(Debug)] pub struct Phit { ///The packet to what this phit belongs pub packet: Rc<Packet>, ///position inside the packet pub index: usize, ///The virtual channel in which this phit should be inserted pub virtual_channel: RefCell<Option<usize>>, } ///A portion of a message. They are divided into phits. ///All phits must go through the same queues without phits of other packets in between. #[derive(Quantifiable)] #[derive(Debug)] pub struct Packet { ///Number of phits pub size: usize, ///Information for the routing pub routing_info: RefCell<RoutingInfo>, ///The message to what this packet belongs. pub message: Rc<Message>, ///position inside the message pub index: usize, } ///An application message, broken into packets #[derive(Quantifiable)] #[derive(Debug)] pub struct Message { ///Server that created the message. pub origin: usize, ///Server that is the destination of the message. pub destination: usize, ///Number of phits. pub size: usize, ///Cycle when the message was created. pub creation_cycle: usize, } impl Phit { ///Whether the phit is leading a packet. Routers check this to make requests, stablish flows, etc. pub fn is_begin(&self) -> bool { self.index==0 } ///Whether this phit is the last one of a packet. Routers use this to finalize some operations. pub fn is_end(&self) -> bool { self.index==self.packet.size-1 } } ///Description of common properties of sets of links. ///For example, the links to servers could have a different delay. ///The topologies can set additional classes. For example, a mesh/torus can diffentiate horizontal/vertical links. ///And a dragonfly topology can differentiate local from global links. pub struct LinkClass { ///Cycles the phit needs to move from one endpoint to the other endpoint. pub delay: usize, //(x,y) means x phits each y cycles ?? //transference_speed: (usize,usize) } impl LinkClass { fn new(cv:&ConfigurationValue) -> LinkClass { let mut delay=None; if let &ConfigurationValue::Object(ref cv_name, ref cv_pairs)=cv { if cv_name!="LinkClass" { panic!("A LinkClass must be created from a `LinkClass` object not `{}`",cv_name); } for &(ref name,ref value) in cv_pairs { match name.as_ref() { "delay" => match value { &ConfigurationValue::Number(f) => delay=Some(f as usize), _ => panic!("bad value for delay"), }, "transference_speed" => (),//FIXME _ => panic!("Nothing to do with field {} in LinkClass",name), } } } else { panic!("Trying to create a LinkClass from a non-Object"); } let delay=delay.expect("There were no delay"); LinkClass{ delay, } } } ///Statistics captured for each link. #[derive(Debug)] struct LinkStatistics { phit_arrivals: usize, } impl LinkStatistics { fn new() -> LinkStatistics { LinkStatistics{ phit_arrivals: 0, } } fn reset(&mut self) { self.phit_arrivals=0; } } ///All the global statistics captured. #[derive(Debug)] pub struct Statistics { ///The number of the first cycle included in the statistics. begin_cycle: usize, ///The number of phits that servers have sent to routers. created_phits: usize, ///Number of phits that have reached their destination server (called consume). consumed_phits: usize, ///Number of phit tails consumed. consumed_packets: usize, ///Number of messages for which all their phits have beeen consumed. consumed_messages: usize, ///Accumulated delay of al messages. From message creation (in traffic.rs) to server consumption. total_message_delay: usize, ///Accumulated count of hops made for all consumed packets. total_packet_hops: usize, ///Count of consumed packets indexed by the number of hops it made. total_packet_per_hop_count: Vec<usize>, ///Specific statistics of the links. Indexed by router and port. link_statistics: Vec<Vec<LinkStatistics>>, ///The columns to print in the periodic reports. columns: Vec<ReportColumn>, } impl Statistics { fn new(topology: &dyn Topology)->Statistics { Statistics{ begin_cycle:0, created_phits:0, consumed_phits:0, consumed_packets:0, consumed_messages:0, total_message_delay:0, total_packet_hops:0, total_packet_per_hop_count:Vec::new(), link_statistics: (0..topology.num_routers()).map(|i| (0..topology.ports(i)).map(|_|LinkStatistics::new()).collect() ).collect(), columns: vec![ ReportColumnKind::BeginEndCycle.into(), ReportColumnKind::InjectedLoad.into(), ReportColumnKind::AcceptedLoad.into(), ReportColumnKind::AveragePacketHops.into(), ReportColumnKind::AverageLinkUtilization.into(), //ReportColumnKind::MaximumLinkUtilization.into(), ReportColumnKind::AverageMessageDelay.into(), //ReportColumnKind::ServerGenerationJainIndex.into(), ReportColumnKind::ServerConsumptionJainIndex.into(), ], } } fn jain_server_created_phits(&self, network:&Network) -> f64 { //double rcvd_count_total=0.0; //double rcvd_count2_total=0.0; let mut count=0.0; let mut count2=0.0; for server in network.servers.iter() { //double x=(double)(network[i].rcvd_count_from); let x=server.statistics.created_phits as f64; count+=x; count2+=x*x; } //double Jain_fairness=rcvd_count_total*rcvd_count_total/rcvd_count2_total/(double)nprocs; //printf("OUT_Jain_fairness=%f%s",Jain_fairness,sep); count*count/count2/network.servers.len() as f64 } fn jain_server_consumed_phits(&self, network:&Network) -> f64 { //double rcvd_count_total=0.0; //double rcvd_count2_total=0.0; let mut count=0.0; let mut count2=0.0; for server in network.servers.iter() { //double x=(double)(network[i].rcvd_count_from); let x=server.statistics.consumed_phits as f64; count+=x; count2+=x*x; } //double Jain_fairness=rcvd_count_total*rcvd_count_total/rcvd_count2_total/(double)nprocs; //printf("OUT_Jain_fairness=%f%s",Jain_fairness,sep); count*count/count2/network.servers.len() as f64 } ///Print in stdout a header showing the statistical columns to be periodically printed. fn print_header(&self) { //println!("cycle_begin-cycle_end injected_load accepted_load server_generation_jain_index server_consumption_jain_index"); let report:String = self.columns.iter().map(|c|c.header()).collect(); println!("{}",report); } ///Print in stdout the current values of the statistical columns indicated to be periodically printed. fn print(&self, next_cycle:usize, network:&Network) { //let cycles=next_cycle-self.begin_cycle+1; //let injected_load=self.created_phits as f32/cycles as f32/network.servers.len() as f32; //let accepted_load=self.consumed_phits as f32/cycles as f32/network.servers.len() as f32; //let jsgp=self.jain_server_created_phits(network); //let jscp=self.jain_server_consumed_phits(network); //println!("{:>11}-{:<9} {:<13} {:<13} {:<17} {:<12}",self.begin_cycle,next_cycle-1,injected_load,accepted_load,jsgp,jscp); let report:String = self.columns.iter().map(|c|c.format(self,next_cycle,network)).collect(); println!("{}",report); } ///Forgets all captured statistics and began capturing again. fn reset(&mut self,next_cycle:usize, network:&mut Network) { self.begin_cycle=next_cycle; self.created_phits=0; self.consumed_phits=0; self.consumed_packets=0; self.consumed_messages=0; self.total_message_delay=0; self.total_packet_hops=0; self.total_packet_per_hop_count=Vec::new(); for server in network.servers.iter_mut() { server.statistics.reset(); } for router in network.routers.iter() { router.borrow_mut().reset_statistics(next_cycle); } for router_links in self.link_statistics.iter_mut() { for link in router_links.iter_mut() { link.reset(); } } } } ///The available statistical columns. Each column has a string for the header and a way to compute what to print each period. #[derive(Debug)] #[allow(dead_code)] enum ReportColumnKind { BeginEndCycle, InjectedLoad, AcceptedLoad, ServerGenerationJainIndex, ServerConsumptionJainIndex, AverageMessageDelay, AveragePacketHops, AverageLinkUtilization, MaximumLinkUtilization, } impl ReportColumnKind { fn name(&self) -> &str { match self { ReportColumnKind::BeginEndCycle => "cycle_begin-cycle_end", ReportColumnKind::InjectedLoad => "injected_load", ReportColumnKind::AcceptedLoad => "accepted_load", ReportColumnKind::ServerGenerationJainIndex => "server_generation_jain_index", ReportColumnKind::ServerConsumptionJainIndex => "server_consumption_jain_index", ReportColumnKind::AverageMessageDelay => "average_message_delay", ReportColumnKind::AveragePacketHops => "average_packet_hops", ReportColumnKind::AverageLinkUtilization => "average_link_utilization", ReportColumnKind::MaximumLinkUtilization => "maximum_link_utilization", } } } ///A statistical column with extra formatting information. #[derive(Debug)] struct ReportColumn { kind: ReportColumnKind, width: usize, } impl ReportColumn { fn header(&self) -> String { //let base = match self.kind //{ // ReportColumnKind::BeginEndCycle => "cycle_begin-cycle_end", // ReportColumnKind::InjectedLoad => "injected_load", // ReportColumnKind::AcceptedLoad => "accepted_load", // ReportColumnKind::ServerGenerationJainIndex => "server_generation_jain_index", // ReportColumnKind::ServerConsumptionJainIndex => "server_consumption_jain_index", //}; let base = self.kind.name(); format!("{name:width$}",name=base,width=self.width) } fn format(&self, statistics: &Statistics, next_cycle:usize, network:&Network) -> String { let cycles=next_cycle-statistics.begin_cycle+1; let value = match self.kind { ReportColumnKind::BeginEndCycle => format!("{:>11}-{}",statistics.begin_cycle,next_cycle-1), ReportColumnKind::InjectedLoad => format!{"{}",statistics.created_phits as f32/cycles as f32/network.servers.len() as f32}, ReportColumnKind::AcceptedLoad => format!{"{}",statistics.consumed_phits as f32/cycles as f32/network.servers.len() as f32}, ReportColumnKind::ServerGenerationJainIndex => format!{"{}",statistics.jain_server_created_phits(network)}, ReportColumnKind::ServerConsumptionJainIndex => format!{"{}",statistics.jain_server_consumed_phits(network)}, ReportColumnKind::AverageMessageDelay => format!("{}",statistics.total_message_delay as f64/statistics.consumed_messages as f64), ReportColumnKind::AveragePacketHops => format!("{}",statistics.total_packet_hops as f64 / statistics.consumed_packets as f64), ReportColumnKind::AverageLinkUtilization => { let total_arrivals:usize = (0..network.topology.num_routers()).map(|i|(0..network.topology.degree(i)).map(|j|statistics.link_statistics[i][j].phit_arrivals).sum::<usize>()).sum(); let total_links: usize = (0..network.topology.num_routers()).map(|i|network.topology.degree(i)).sum(); format!("{}",total_arrivals as f64 / cycles as f64 / total_links as f64) }, ReportColumnKind::MaximumLinkUtilization => { let maximum_arrivals:usize = statistics.link_statistics.iter().map(|rls|rls.iter().map(|ls|ls.phit_arrivals).max().unwrap()).max().unwrap(); format!("{}",maximum_arrivals as f64 / cycles as f64) }, }; format!("{value:width$}",value=value,width=self.width) } } ///From putting default values for each kind. impl From<ReportColumnKind> for ReportColumn { fn from(kind:ReportColumnKind) -> ReportColumn { let width = 1+kind.name().len(); ReportColumn{ kind, width, } } } ///The object represeting the whole simulation. pub struct Simulation<'a> { ///The whole parsed configuration. #[allow(dead_code)] pub configuration: ConfigurationValue, ///The seed of the random number generator. #[allow(dead_code)] pub seed: usize, ///The random number generator itself, with its current state. pub rng: RefCell<StdRng>, ///Cycles of preparation before the actual measured execution pub warmup: usize, ///Cycles of measurement pub measured: usize, ///The instantiated network. It constains the routers and servers connected according to the topology. pub network: Network, ///The traffic being generated/consumed by the servers. pub traffic: Box<dyn Traffic>, ///The maximum size in phits that network packets can have. Any message greater than this is broken into several packets. pub maximum_packet_size: usize, ///The routing algorithm that the network router will employ to set candidate routes. pub routing: Box<dyn Routing>, ///The properties associated to each link class. pub link_classes: Vec<LinkClass>, ///The queue of events guiding the simulation. pub event_queue: EventQueue, ///The current cycle, i.e, the current discrete time. pub cycle:usize, ///The statistics being collected. pub statistics: Statistics, ///Information abut how to launch simulations to different systems. #[allow(dead_code)] pub launch_configurations: Vec<ConfigurationValue>, ///Plugged functions to build traffics, routers, etc. pub plugs: &'a Plugs, } impl<'a> Simulation<'a> { fn new(cv: &ConfigurationValue, plugs:&'a Plugs) -> Simulation<'a> { let mut seed: Option<usize> = None; let mut topology =None; let mut traffic =None; let mut router_cfg: Option<&ConfigurationValue> =None; let mut warmup = None; let mut measured = None; let mut maximum_packet_size=None; let mut routing=None; let mut link_classes = None; let mut launch_configurations: Vec<ConfigurationValue> = vec![]; if let &ConfigurationValue::Object(ref cv_name, ref cv_pairs)=cv { if cv_name!="Configuration" { panic!("A simulation must be created from a `Configuration` object not `{}`",cv_name); } for &(ref name,ref value) in cv_pairs { match name.as_ref() { "random_seed" => match value { &ConfigurationValue::Number(f) => seed=Some(f as usize), _ => panic!("bad value for random_seed"), } "warmup" => match value { &ConfigurationValue::Number(f) => warmup=Some(f as usize), _ => panic!("bad value for warmup"), } "measured" => match value { &ConfigurationValue::Number(f) => measured=Some(f as usize), _ => panic!("bad value for measured"), } //"topology" => topology=Some(new_topology(value)), "topology" => topology=Some(value), "traffic" => { //traffic=Some(new_traffic(value,self.rng)); traffic=Some(value); }, "maximum_packet_size" => match value { &ConfigurationValue::Number(f) => maximum_packet_size=Some(f as usize), _ => panic!("bad value for maximum_packet_size"), } "router" => router_cfg=Some(&value), "routing" => routing=Some(new_routing(RoutingBuilderArgument{cv:value,plugs})), "link_classes" => match value { &ConfigurationValue::Array(ref l) => link_classes=Some(l.iter().map(|v|LinkClass::new(v)).collect()), _ => panic!("bad value for link_classes"), } "launch_configurations" => match value { &ConfigurationValue::Array(ref l) => launch_configurations=l.clone(), _ => panic!("bad value for launch_configurations"), } "legend_name" => (), _ => panic!("Nothing to do with field {} in Configuration",name), } } } else { panic!("Trying to create a simulation from a non-Object"); } let seed=seed.expect("There were no random_seed"); let warmup=warmup.expect("There were no warmup"); let measured=measured.expect("There were no measured"); let topology=topology.expect("There were no topology"); let traffic=traffic.expect("There were no traffic"); let maximum_packet_size=maximum_packet_size.expect("There were no maximum_packet_size"); let router_cfg=router_cfg.expect("There were no router"); let mut routing=routing.expect("There were no routing"); let link_classes:Vec<LinkClass>=link_classes.expect("There were no link_classes"); let rng=RefCell::new(StdRng::from_seed(&[seed])); let topology=new_topology(TopologyBuilderArgument{ cv:topology, plugs, rng:&rng, }); topology.check_adjacency_consistency(Some(link_classes.len())); routing.initialize(&topology,&rng); let num_routers=topology.num_routers(); let num_servers=topology.num_servers(); //let routers: Vec<Rc<RefCell<dyn Router>>>=(0..num_routers).map(|index|new_router(index,router_cfg,plugs,topology.as_ref(),maximum_packet_size)).collect(); let routers: Vec<Rc<RefCell<dyn Router>>>=(0..num_routers).map(|index|new_router(router::RouterBuilderArgument{ router_index:index, cv:router_cfg, plugs, topology:topology.as_ref(), maximum_packet_size })).collect(); let servers=(0..num_servers).map(|index|{ let port=topology.server_neighbour(index); let router_status=match port.0 { Location::RouterPort{ router_index, router_port } => { let router=routers[router_index].borrow(); let nvc=router.num_virtual_channels(); let buffer_amount=nvc; let buffer_size=(0..nvc).map(|vc|router.virtual_port_size(router_port,vc)).sum::<usize>(); let size_to_send=maximum_packet_size; let from_server_mechanism = TransmissionFromServer::new(buffer_amount,buffer_size,size_to_send); from_server_mechanism.new_status_at_emissor() } _ => panic!("Server is not connected to router"), }; Server{ index, port, router_status, stored_messages:VecDeque::new(), stored_packets:VecDeque::new(), stored_phits:VecDeque::new(), consumed_phits: BTreeMap::new(), statistics: ServerStatistics::new(), } }).collect(); let traffic=new_traffic(TrafficBuilderArgument{ cv:traffic, plugs, topology:&topology, rng:&rng, }); let statistics=Statistics::new(topology.as_ref()); Simulation{ configuration: cv.clone(), seed, rng, warmup, measured, network: Network{ topology, routers, servers, }, traffic, maximum_packet_size, routing, link_classes, event_queue: EventQueue::new(1000), cycle:0, statistics, launch_configurations, plugs, } } ///Run the simulations until it finishes. fn run(&mut self) { self.print_memory_breakdown(); self.statistics.print_header(); while self.cycle < self.warmup+self.measured { self.advance(); if self.cycle==self.warmup { self.statistics.reset(self.cycle,&mut self.network); self.routing.reset_statistics(self.cycle); } if self.traffic.is_finished() { println!("Traffic consumed before cycle {}",self.cycle); break; } } } ///Execute a single cycle of the simulation. fn advance(&mut self) { let mut ievent=0; //println!("Begin advance"); //while let Some(event) = self.event_queue.access_begin(ievent) loop { let event=if let Some(event) = self.event_queue.access_begin(ievent) { event.clone() } else { break; }; //if self.cycle>=3122 //{ // println!("Processing begin event at position {}",ievent); //} match event { Event::PhitToLocation{ ref phit, ref previous, //router, //port, ref new, } => { match new { &Location::RouterPort{router_index:router,router_port:port} => { self.statistics.link_statistics[router][port].phit_arrivals+=1; let mut brouter=self.network.routers[router].borrow_mut(); brouter.insert(phit.clone(),port,&self.rng); if brouter.pending_events()==0 { brouter.add_pending_event(); //self.event_queue.enqueue_end(Event::Generic(self.network.routers[router]),0); //self.event_queue.enqueue_end(Event::Generic(self.network.routers[router] as Rc<RefCell<Eventful>>),0); self.event_queue.enqueue_end(Event::Generic(brouter.as_eventful().upgrade().expect("missing router")),0); } match previous { &Location::ServerPort(_server_index) => if phit.is_begin() { self.routing.initialize_routing_info(&phit.packet.routing_info, self.network.topology.as_ref(), router, phit.packet.message.destination,&self.rng); }, &Location::RouterPort{../*router_index,router_port*/} => if phit.is_begin() { phit.packet.routing_info.borrow_mut().hops+=1; self.routing.update_routing_info(&phit.packet.routing_info, self.network.topology.as_ref(), router, port, phit.packet.message.destination,&self.rng); }, _ => (), }; }, &Location::ServerPort(server) => { if server!=phit.packet.message.destination { panic!("Packet reached wrong server, {} instead of {}!\n",server,phit.packet.message.destination); } self.network.servers[server].consume(phit.clone(),self.traffic.deref_mut(),&mut self.statistics,self.cycle,&self.network.topology,&self.rng); } &Location::None => panic!("Phit went nowhere previous={:?}",previous), }; }, //Event::PhitClearAcknowledge Event::Acknowledge{ location, //virtual_channel, message: ack_message, } => match location { Location::RouterPort{ router_index, router_port, } => { let mut brouter=self.network.routers[router_index].borrow_mut(); //brouter.acknowledge(router_port,virtual_channel); brouter.acknowledge(router_port,ack_message); if brouter.pending_events()==0 { brouter.add_pending_event(); self.event_queue.enqueue_end(Event::Generic(brouter.as_eventful().upgrade().expect("missing router")),0); } }, Location::ServerPort(server) => self.network.servers[server].router_status.acknowledge(ack_message), //&Location::ServerPort(server) => TransmissionFromServer::acknowledge(self.network.servers[server].router_status,ack_message), _ => (), }, Event::Generic(ref _element) => unimplemented!(), }; ievent+=1; } //println!("Done cycle-begin events"); ievent=0; //while let Some(event) = self.event_queue.access_end(ievent) loop { let event=if let Some(event) = self.event_queue.access_end(ievent) { event.clone() } else { break; }; //if self.cycle>=3122 //{ // println!("Processing end event at position {}",ievent); //} match event { Event::PhitToLocation{ .. //ref phit, //ref previous, //ref new, } => panic!("Phits should not arrive at the end of a cycle"), //Event::PhitClearAcknowledge Event::Acknowledge{ .. //ref location, //virtual_channel, } => panic!("Phit Acknowledgements should not arrive at the end of a cycle"), Event::Generic(ref element) => { let new_events=element.borrow_mut().process(self); //element.borrow_mut().clear_pending_events();//now done by process itself for ge in new_events.into_iter() { self.event_queue.enqueue(ge); } }, }; ievent+=1; } //println!("Done cycle-end events"); let num_servers=self.network.servers.len(); for (iserver,server) in self.network.servers.iter_mut().enumerate() { //println!("credits of {} = {}",iserver,server.credits); if let (Location::RouterPort{router_index: index,router_port: port},link_class)=server.port { //FIXME: magic value if server.stored_messages.len()<20 && self.traffic.should_generate(iserver,&self.rng) { //server.stored_messages.push_back(Rc::new(self.traffic.generate_message(iserver,&self.rng))); //if let Some(message) = self.traffic.generate_message(iserver,&self.rng) //{ // server.stored_messages.push_back(Rc::new(message)); //} match self.traffic.generate_message(iserver,self.cycle,&self.network.topology,&self.rng) { Ok(message) => { if message.destination>=num_servers { panic!("Message sent to outside the network unexpectedly."); } if message.destination==iserver { panic!("Generated message to self unexpectedly."); } server.stored_messages.push_back(message); }, Err(TrafficError::OriginOutsideTraffic) => (), Err(TrafficError::SelfMessage) => (), //Err(error) => panic!("An error happened when generating traffic: {:?}",error), }; } if server.stored_packets.len()==0 && server.stored_messages.len()>0 { let message=server.stored_messages.pop_front().expect("There are not messages in queue"); let mut size=message.size; while size>0 { let ps=if size>self.maximum_packet_size { self.maximum_packet_size } else { size }; server.stored_packets.push_back(Rc::new(Packet{ size:ps, routing_info: RefCell::new(RoutingInfo::new()), message:message.clone(), index:0, })); size-=ps; } } if server.stored_phits.len()==0 && server.stored_packets.len()>0 { let packet=server.stored_packets.pop_front().expect("There are not packets in queue"); for index in 0..packet.size { server.stored_phits.push_back(Rc::new(Phit{ packet:packet.clone(), index, virtual_channel: RefCell::new(None), })); } } //if server.stored_phits.len()>0 && server.credits>0 //{ // let phit=server.stored_phits.pop_front().expect("There are not phits"); // let event=Event::PhitToLocation{ // phit, // previous: Location::ServerPort(iserver), // new: Location::RouterPort{router_index:index,router_port:port}, // }; // self.statistics.created_phits+=1; // server.statistics.created_phits+=1; // self.event_queue.enqueue_begin(event,self.link_classes[link_class].delay); // server.credits-=1; //} if server.stored_phits.len()>0 { //Do not extract the phit until we know whether we can transmit it. let phit=server.stored_phits.front().expect("There are not phits"); if server.router_status.can_transmit(&phit,0) { let phit=server.stored_phits.pop_front().expect("There are not phits"); let event=Event::PhitToLocation{ phit, previous: Location::ServerPort(iserver), new: Location::RouterPort{router_index:index,router_port:port}, }; self.statistics.created_phits+=1; server.statistics.created_phits+=1; self.event_queue.enqueue_begin(event,self.link_classes[link_class].delay); server.router_status.notify_outcoming_phit(0,self.cycle); } } } else { panic!("Where goes this port?"); } } //println!("Done generation"); //if self.cycle%1000==999 //{ // self.print_memory_breakdown(); //} self.event_queue.advance(); self.cycle+=1; if self.cycle%1000==0 { //println!("Statistics up to cycle {}: {:?}",self.cycle,self.statistics); self.statistics.print(self.cycle,&self.network); //self.print_memory_breakdown(); } } ///Write the result of the simulation somewhere, typically to a 'result' file in a 'run*' directory. fn write_result(&self,output:&mut dyn Write) { // https://stackoverflow.com/questions/22355273/writing-to-a-file-or-stdout-in-rust //output.write(b"Hello from the simulator\n").unwrap(); //Result //{ // accepted_load: 0.9, // average_message_delay: 100, //} let cycles=self.cycle-self.statistics.begin_cycle; let num_servers=self.network.servers.len(); let injected_load=self.statistics.created_phits as f64/cycles as f64/num_servers as f64; let accepted_load=self.statistics.consumed_phits as f64/cycles as f64/num_servers as f64; let average_message_delay=self.statistics.total_message_delay as f64/self.statistics.consumed_messages as f64; let jscp=self.statistics.jain_server_consumed_phits(&self.network); let jsgp=self.statistics.jain_server_created_phits(&self.network); let average_packet_hops=self.statistics.total_packet_hops as f64 / self.statistics.consumed_packets as f64; let total_packet_per_hop_count=self.statistics.total_packet_per_hop_count.iter().map(|&count|ConfigurationValue::Number(count as f64)).collect(); //let total_arrivals:usize = self.statistics.link_statistics.iter().map(|rls|rls.iter().map(|ls|ls.phit_arrivals).sum::<usize>()).sum(); //let total_links:usize = self.statistics.link_statistics.iter().map(|rls|rls.len()).sum(); let total_arrivals:usize = (0..self.network.topology.num_routers()).map(|i|(0..self.network.topology.degree(i)).map(|j|self.statistics.link_statistics[i][j].phit_arrivals).sum::<usize>()).sum(); let total_links: usize = (0..self.network.topology.num_routers()).map(|i|self.network.topology.degree(i)).sum(); let average_link_utilization = total_arrivals as f64 / cycles as f64 / total_links as f64; let maximum_arrivals:usize = self.statistics.link_statistics.iter().map(|rls|rls.iter().map(|ls|ls.phit_arrivals).max().unwrap()).max().unwrap(); let maximum_link_utilization = maximum_arrivals as f64 / cycles as f64; let git_id=get_git_id(); let mut result_content = vec![ (String::from("cycle"),ConfigurationValue::Number(self.cycle as f64)), (String::from("injected_load"),ConfigurationValue::Number(injected_load)), (String::from("accepted_load"),ConfigurationValue::Number(accepted_load)), (String::from("average_message_delay"),ConfigurationValue::Number(average_message_delay)), (String::from("server_generation_jain_index"),ConfigurationValue::Number(jsgp)), (String::from("server_consumption_jain_index"),ConfigurationValue::Number(jscp)), (String::from("average_packet_hops"),ConfigurationValue::Number(average_packet_hops)), (String::from("total_packet_per_hop_count"),ConfigurationValue::Array(total_packet_per_hop_count)), (String::from("average_link_utilization"),ConfigurationValue::Number(average_link_utilization)), (String::from("maximum_link_utilization"),ConfigurationValue::Number(maximum_link_utilization)), //(String::from("git_id"),ConfigurationValue::Literal(format!("\"{}\"",git_id))), (String::from("git_id"),ConfigurationValue::Literal(format!("{}",git_id))), ]; if let Some(content)=self.routing.statistics(self.cycle) { result_content.push((String::from("routing_statistics"),content)); } if let Some(content) = self.network.routers.iter().enumerate().fold(None,|maybe_stat,(index,router)|router.borrow().aggregate_statistics(maybe_stat,index,self.network.routers.len(),self.cycle)) { result_content.push((String::from("router_aggregated_statistics"),content)); } if let Ok(linux_process) = procfs::process::Process::myself() { let status = linux_process.status().expect("failed to get status of the self process"); if let Some(peak_memory)=status.vmhwm { //Peak resident set size by kibibytes ("high water mark"). result_content.push((String::from("linux_high_water_mark"),ConfigurationValue::Number(peak_memory as f64))); } let stat = linux_process.stat().expect("failed to get stat of the self process"); let tps = procfs::ticks_per_second().expect("could not get the number of ticks per second.") as f64; result_content.push((String::from("user_time"),ConfigurationValue::Number(stat.utime as f64/tps))); result_content.push((String::from("system_time"),ConfigurationValue::Number(stat.stime as f64/tps))); } let result=ConfigurationValue::Object(String::from("Result"),result_content); writeln!(output,"{}",result).unwrap(); } } impl<'a> Quantifiable for Simulation<'a> { fn total_memory(&self) -> usize { unimplemented!(); } fn print_memory_breakdown(&self) { println!("\nBegin memory report"); println!("self : {}",size_of::<Self>()); //println!("phits on statistics : {}",self.statistics.created_phits-self.statistics.consumed_phits); println!("phit : {}",size_of::<Phit>()); println!("packet : {}",size_of::<Packet>()); println!("message : {}",size_of::<Message>()); //println!("topology : {}",size_of::<dyn Topology>()); //println!("router : {}",size_of::<dyn Router>()); println!("server : {}",size_of::<Server>()); println!("event : {}",size_of::<Event>()); //self.event_queue.print_memory(); println!("network total : {}",quantify::human_bytes(self.network.total_memory())); println!("traffic total : {}",quantify::human_bytes(self.traffic.total_memory())); println!("event_queue total : {}",quantify::human_bytes(self.event_queue.total_memory())); //println!("topology total : {}",quantify::human_bytes(self.network.topology.total_memory())); println!("End memory report\n"); } fn forecast_total_memory(&self) -> usize { unimplemented!(); } } #[derive(Default)] pub struct Plugs { //routers: BTreeMap<String, fn(usize,&ConfigurationValue,&Plugs, &dyn Topology, usize) -> Rc<RefCell<dyn Router>> >, routers: BTreeMap<String, fn(RouterBuilderArgument) -> Rc<RefCell<dyn Router>> >, //topologies: BTreeMap<String, fn(&ConfigurationValue, &Plugs, &RefCell<StdRng>) -> Box<dyn Topology> >, topologies: BTreeMap<String, fn(TopologyBuilderArgument) -> Box<dyn Topology> >, stages: BTreeMap<String, fn(StageBuilderArgument) -> Box<dyn Stage> >, //routings: BTreeMap<String,fn(&ConfigurationValue, &Plugs) -> Box<dyn Routing>>, routings: BTreeMap<String,fn(RoutingBuilderArgument) -> Box<dyn Routing>>, //traffics: BTreeMap<String,fn(&ConfigurationValue, &Plugs, &Box<dyn Topology>, &RefCell<StdRng>) -> Box<dyn Traffic> >, traffics: BTreeMap<String,fn(TrafficBuilderArgument) -> Box<dyn Traffic> >, patterns: BTreeMap<String, fn(PatternBuilderArgument) -> Box<dyn Pattern> >, policies: BTreeMap<String, fn(VCPolicyBuilderArgument) -> Box<dyn VirtualChannelPolicy> >, } impl Plugs { //pub fn add_router(&mut self, key:String, builder:fn(usize,&ConfigurationValue,&Plugs, &dyn Topology, usize) -> Rc<RefCell<dyn Router>>) pub fn add_router(&mut self, key:String, builder:fn(RouterBuilderArgument) -> Rc<RefCell<dyn Router>>) { self.routers.insert(key,builder); } pub fn add_topology(&mut self, key:String, builder:fn(TopologyBuilderArgument) -> Box<dyn Topology>) { self.topologies.insert(key,builder); } pub fn add_stage(&mut self, key:String, builder:fn(StageBuilderArgument) -> Box<dyn Stage>) { self.stages.insert(key,builder); } pub fn add_traffic(&mut self, key:String, builder:fn(TrafficBuilderArgument) -> Box<dyn Traffic>) { self.traffics.insert(key,builder); } pub fn add_routing(&mut self, key:String, builder:fn(RoutingBuilderArgument) -> Box<dyn Routing>) { self.routings.insert(key,builder); } pub fn add_policy(&mut self, key:String, builder: fn(VCPolicyBuilderArgument) -> Box<dyn VirtualChannelPolicy>) { self.policies.insert(key,builder); } pub fn add_pattern(&mut self, key:String, builder: fn(PatternBuilderArgument) -> Box<dyn Pattern>) { self.patterns.insert(key,builder); } } impl Debug for Plugs { fn fmt(&self,f: &mut std::fmt::Formatter<'_>) -> std::result::Result<(), std::fmt::Error> { write!(f,"{};",self.routers.keys().map(|s|s.to_string()).collect::<Vec<String>>().join(","))?; write!(f,"{};",self.topologies.keys().map(|s|s.to_string()).collect::<Vec<String>>().join(","))?; write!(f,"{};",self.stages.keys().map(|s|s.to_string()).collect::<Vec<String>>().join(","))?; write!(f,"{};",self.routings.keys().map(|s|s.to_string()).collect::<Vec<String>>().join(","))?; write!(f,"{};",self.traffics.keys().map(|s|s.to_string()).collect::<Vec<String>>().join(","))?; write!(f,"{};",self.patterns.keys().map(|s|s.to_string()).collect::<Vec<String>>().join(","))?; write!(f,"{};",self.policies.keys().map(|s|s.to_string()).collect::<Vec<String>>().join(","))?; Ok(()) } } /// Main when passed a configuration file as path /// `file` must be a configuration file with the experiment to simulate. /// `plugs` constains the plugged builder functions. /// `result_file` indicates where to write the results. //pub fn file_main(file:&mut File, plugs:&Plugs, option_matches:&Matches) pub fn file_main(file:&mut File, plugs:&Plugs, mut results_file:Option<File>) { let mut contents = String::new(); file.read_to_string(&mut contents).expect("something went wrong reading the file"); //println!("With text:\n{}", contents); match config_parser::parse(&contents) { Err(x) => println!("error parsing configuration file: {:?}",x), Ok(x) => { println!("parsed correctly: {:?}",x); match x { config_parser::Token::Value(ref value) => { let flat=flatten_configuration_value(value); if let ConfigurationValue::Experiments(ref experiments)=flat { for (i,experiment) in experiments.iter().enumerate() { println!("experiment {} of {} is {:?}",i,experiments.len(),experiment); let mut simulation=Simulation::new(&experiment,plugs); simulation.run(); match results_file { Some(ref mut f) => simulation.write_result(f), None => simulation.write_result(&mut stdout()), }; } } else { panic!("there are not experiments"); } }, _ => panic!("Not a value"), }; }, }; } /// Main when passed a directory as path /// `path` must be a directory containing a `main.cfg`. /// `plugs` constains the plugged builder functions. /// `action` is the action to be performed in the experiment. For example running the simulations or drawing graphics. /// `options` encapsulate other parameters such as restricting the performed action to a range of simulations. //pub fn directory_main(path:&Path, binary:&str, plugs:&Plugs, option_matches:&Matches) pub fn directory_main(path:&Path, binary:&str, plugs:&Plugs, action:Action, options: ExperimentOptions) { let binary_path=Path::new(binary); //let mut experiment=Experiment::new(binary_path,path,plugs,option_matches); let mut experiment=Experiment::new(binary_path,path,plugs,options); //let action=if option_matches.opt_present("action") //{ // Action::from_str(&option_matches.opt_str("action").unwrap()).expect("Illegal action") //} //else //{ // Action::LocalAndOutput //}; experiment.execute_action(action); //println!("{:?} is a path",path); } /// Get a identifier of the git commit. It is of little use to someone using a forzen public version. /// The value is fixed in the build script. pub fn get_git_id() -> &'static str { include_str!(concat!(env!("OUT_DIR"), "/generated_git_id")) } #[cfg(test)] mod tests { #[test] fn it_works() { assert_eq!(2 + 2, 4); } }