hvm 2.0.22

A massively parallel, optimal functional runtime in Rust.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196

#![allow(dead_code)]
#![allow(unused_imports)]
#![allow(unused_variables)]

use clap::{Arg, ArgAction, Command};
use ::hvm::{ast, cmp, hvm};
use std::fs;
use std::io::Write;
use std::path::PathBuf;
use std::process::Command as SysCommand;

#[cfg(feature = "c")]
extern "C" {
  fn hvm_c(book_buffer: *const u32);
}

#[cfg(feature = "cuda")]
extern "C" {
  fn hvm_cu(book_buffer: *const u32);
}

fn main() {
  let matches = Command::new("hvm")
    .about("HVM2: Higher-order Virtual Machine 2 (32-bit Version)")
    .version(env!("CARGO_PKG_VERSION"))
    .subcommand_required(true)
    .arg_required_else_help(true)
    .subcommand(
      Command::new("run")
        .about("Interprets a file (using Rust)")
        .arg(Arg::new("file").required(true)))
    .subcommand(
      Command::new("run-c")
        .about("Interprets a file (using C)")
        .arg(Arg::new("file").required(true))
        .arg(Arg::new("io")
          .long("io")
          .action(ArgAction::SetTrue)
          .help("Run with IO enabled"))
    )
    .subcommand(
      Command::new("run-cu")
        .about("Interprets a file (using CUDA)")
        .arg(Arg::new("file").required(true))
        .arg(Arg::new("io")
          .long("io")
          .action(ArgAction::SetTrue)
          .help("Run with IO enabled")))
    .subcommand(
      Command::new("gen-c")
        .about("Compiles a file with IO (to standalone C)")
        .arg(Arg::new("file").required(true))
        .arg(Arg::new("io")
          .long("io")
          .action(ArgAction::SetTrue)
          .help("Generate with IO enabled")))
    .subcommand(
      Command::new("gen-cu")
        .about("Compiles a file (to standalone CUDA)")
        .arg(Arg::new("file").required(true))
        .arg(Arg::new("io")
          .long("io")
          .action(ArgAction::SetTrue)
          .help("Generate with IO enabled")))
    .get_matches();

  match matches.subcommand() {
    Some(("run", sub_matches)) => {
      let file = sub_matches.get_one::<String>("file").expect("required");
      let code = fs::read_to_string(file).expect("Unable to read file");
      let book = ast::Book::parse(&code).unwrap_or_else(|er| panic!("{}",er)).build();
      run(&book);
    }
    Some(("run-c", sub_matches)) => {
      let file = sub_matches.get_one::<String>("file").expect("required");
      let code = fs::read_to_string(file).expect("Unable to read file");
      let book = ast::Book::parse(&code).unwrap_or_else(|er| panic!("{}",er)).build();
      let mut data : Vec<u8> = Vec::new();
      book.to_buffer(&mut data);
      #[cfg(feature = "c")]
      unsafe {
        hvm_c(data.as_mut_ptr() as *mut u32);
      }
      #[cfg(not(feature = "c"))]
      println!("C runtime not available!\n");
    }
    Some(("run-cu", sub_matches)) => {
      let file = sub_matches.get_one::<String>("file").expect("required");
      let code = fs::read_to_string(file).expect("Unable to read file");
      let book = ast::Book::parse(&code).unwrap_or_else(|er| panic!("{}",er)).build();
      let mut data : Vec<u8> = Vec::new();
      book.to_buffer(&mut data);
      #[cfg(feature = "cuda")]
      unsafe {
        hvm_cu(data.as_mut_ptr() as *mut u32);
      }
      #[cfg(not(feature = "cuda"))]
      println!("CUDA runtime not available!\n If you've installed CUDA and nvcc after HVM, please reinstall HVM.");
    }
    Some(("gen-c", sub_matches)) => {
      // Reads book from file
      let file = sub_matches.get_one::<String>("file").expect("required");
      let code = fs::read_to_string(file).expect("Unable to read file");
      let book = ast::Book::parse(&code).unwrap_or_else(|er| panic!("{}",er)).build();

      // Gets optimal core count
      let cores = num_cpus::get();
      let tpcl2 = (cores as f64).log2().floor() as u32;

      // Generates the interpreted book
      let mut book_buf : Vec<u8> = Vec::new();
      book.to_buffer(&mut book_buf);
      let bookb = format!("{:?}", book_buf).replace("[","{").replace("]","}");
      let bookb = format!("static const u8 BOOK_BUF[] = {};", bookb);

      // Generates the C file
      let hvm_c = include_str!("hvm.c");
      let hvm_c = format!("#define IO\n\n{hvm_c}");
      let hvm_c = hvm_c.replace("///COMPILED_INTERACT_CALL///", &cmp::compile_book(cmp::Target::C, &book));
      let hvm_c = hvm_c.replace("#define INTERPRETED", "#define COMPILED");
      let hvm_c = hvm_c.replace("//COMPILED_BOOK_BUF//", &bookb);
      let hvm_c = hvm_c.replace("#define WITHOUT_MAIN", "#define WITH_MAIN");
      let hvm_c = hvm_c.replace("#define TPC_L2 0", &format!("#define TPC_L2 {} // {} cores", tpcl2, cores));
      let hvm_c = format!("{hvm_c}\n\n{}", include_str!("run.c"));
      let hvm_c = hvm_c.replace(r#"#include "hvm.c""#, "");
      println!("{}", hvm_c);
    }
    Some(("gen-cu", sub_matches)) => {
      // Reads book from file
      let file = sub_matches.get_one::<String>("file").expect("required");
      let code = fs::read_to_string(file).expect("Unable to read file");
      let book = ast::Book::parse(&code).unwrap_or_else(|er| panic!("{}",er)).build();

      // Generates the interpreted book
      let mut book_buf : Vec<u8> = Vec::new();
      book.to_buffer(&mut book_buf);
      let bookb = format!("{:?}", book_buf).replace("[","{").replace("]","}");
      let bookb = format!("static const u8 BOOK_BUF[] = {};", bookb);

      //FIXME: currently, CUDA is faster on interpreted mode, so the compiler uses it.

      // Compile with compiled functions:
      //let hvm_c = include_str!("hvm.cu");
      //let hvm_c = hvm_c.replace("///COMPILED_INTERACT_CALL///", &cmp::compile_book(cmp::Target::CUDA, &book));
      //let hvm_c = hvm_c.replace("#define INTERPRETED", "#define COMPILED");
      
      // Generates the Cuda file
      let hvm_cu = include_str!("hvm.cu");
      let hvm_cu = format!("#define IO\n\n{hvm_cu}");
      let hvm_cu = hvm_cu.replace("//COMPILED_BOOK_BUF//", &bookb);
      let hvm_cu = hvm_cu.replace("#define WITHOUT_MAIN", "#define WITH_MAIN");
      let hvm_cu = format!("{hvm_cu}\n\n{}", include_str!("run.cu"));
      let hvm_cu = hvm_cu.replace(r#"#include "hvm.cu""#, "");
      println!("{}", hvm_cu);
    }
    _ => unreachable!(),
  }
}

pub fn run(book: &hvm::Book) {
  // Initializes the global net
  let net = hvm::GNet::new(1 << 29, 1 << 29);

  // Initializes threads
  let mut tm = hvm::TMem::new(0, 1);

  // Creates an initial redex that calls main
  let main_id = book.defs.iter().position(|def| def.name == "main").unwrap();
  tm.rbag.push_redex(hvm::Pair::new(hvm::Port::new(hvm::REF, main_id as u32), hvm::ROOT));
  net.vars_create(hvm::ROOT.get_val() as usize, hvm::NONE);

  // Starts the timer
  let start = std::time::Instant::now();

  // Evaluates
  tm.evaluator(&net, &book);
  
  // Stops the timer
  let duration = start.elapsed();

  //println!("{}", net.show());

  // Prints the result
  if let Some(tree) = ast::Net::readback(&net, book) {
    println!("Result: {}", tree.show());
  } else {
    println!("Readback failed. Printing GNet memdump...\n");
    println!("{}", net.show());
  }

  // Prints interactions and time
  let itrs = net.itrs.load(std::sync::atomic::Ordering::Relaxed);
  println!("- ITRS: {}", itrs);
  println!("- TIME: {:.2}s", duration.as_secs_f64());
  println!("- MIPS: {:.2}", itrs as f64 / duration.as_secs_f64() / 1_000_000.0);
}