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
mod consumer;
mod distributed;
mod local;
// mod one_sided;
use crate::array::iterator::one_sided_iterator::OneSidedIter;
use crate::array::r#unsafe::*;
use crate::array::iterator::distributed_iterator::{DistIter, DistIterMut};
use crate::array::iterator::local_iterator::{LocalIter, LocalIterMut};
// use crate::array::iterator::one_sided_iterator::OneSidedIter;
use crate::array::*;
use crate::memregion::Dist;
// use one_sided::UnsafeArrayOneSidedIter;
impl<T: Dist> UnsafeArray<T> {
#[doc(alias = "Collective")]
/// Create an immutable [DistributedIterator] for this UnsafeArray
///
/// # Collective Operation
/// Requires all PEs associated with the array to enter the call otherwise deadlock will occur (i.e. barriers are being called internally)
/// Throughout execution of the iteration, data movement may occur amongst various PEs
///
/// # Safety
/// Data in UnsafeArrays are always unsafe as there are no protections on how remote PE's may access any other PE's local data.
/// It is also possible to have mutable and immutable references to this arrays data on the same PE
/// # Examples
///```
/// use lamellar::array::prelude::*;
/// let world = LamellarWorldBuilder::new().build();
/// let my_pe = world.my_pe();
/// let array: UnsafeArray<usize> = UnsafeArray::new(&world,100,Distribution::Cyclic).block();
///
/// unsafe {
/// array.dist_iter().for_each(move |elem| println!("PE{my_pe} elem {elem}") )
/// .block();
/// }
///```
pub unsafe fn dist_iter(&self) -> DistIter<'static, T, UnsafeArray<T>> {
DistIter::new(self.clone().into(), 0, 0)
}
#[doc(alias = "Collective")]
/// Create a mutable [DistributedIterator] for this UnsafeArray
///
/// # Collective Operation
/// Requires all PEs associated with the array to enter the call otherwise deadlock will occur (i.e. barriers are being called internally)
/// Throughout execution of the iteration, data movement may occur amongst various PEs
///
/// # Safety
/// Data in UnsafeArrays are always unsafe as there are no protections on how remote PE's may access any other PE's local data.
/// It is also possible to have mutable and immutable references to this arrays data on the same PE
/// # Examples
///```
/// use lamellar::array::prelude::*;
/// let world = LamellarWorldBuilder::new().build();
/// let my_pe = world.my_pe();
/// let array: UnsafeArray<usize> = UnsafeArray::new(&world,100,Distribution::Cyclic).block();
///
/// unsafe {
///
/// array.dist_iter_mut().for_each(move |elem| *elem = my_pe)
/// .block();
/// }
///```
pub unsafe fn dist_iter_mut(&self) -> DistIterMut<'static, T, UnsafeArray<T>> {
DistIterMut::new(self.clone().into(), 0, 0)
}
#[doc(alias("One-sided", "onesided"))]
/// Create an immutable [LocalIterator] for this UnsafeArray
///
/// # Safety
/// Data in UnsafeArrays are always unsafe as there are no protections on how remote PE's may access any other PE's local data.
/// It is also possible to have mutable and immutable references to this arrays data on the same PE
///
/// # One-sided Operation
/// The iteration is launched and local to only the calling PE.
/// No data movement from remote PEs is required
///
/// # Examples
///```
/// use lamellar::array::prelude::*;
/// let world = LamellarWorldBuilder::new().build();
/// let my_pe = world.my_pe();
/// let array: UnsafeArray<usize> = UnsafeArray::new(&world,100,Distribution::Cyclic).block();
///
/// unsafe {
///
/// array.local_iter().for_each(move |elem| println!("PE{my_pe} elem {elem}"))
/// .block( );
/// }
///```
pub unsafe fn local_iter(&self) -> LocalIter<'static, T, UnsafeArray<T>> {
LocalIter::new(self.clone().into(), 0, 0)
}
#[doc(alias("One-sided", "onesided"))]
/// Create a mutable [LocalIterator] for this UnsafeArray
///
/// # Safety
/// Data in UnsafeArrays are always unsafe as there are no protections on how remote PE's may access any other PE's local data.
/// It is also possible to have mutable and immutable references to this arrays data on the same PE
///
/// # One-sided Operation
/// The iteration is launched and local to only the calling PE.
/// No data movement from remote PEs is required
///
/// # Examples
///```
/// use lamellar::array::prelude::*;
/// let world = LamellarWorldBuilder::new().build();
/// let my_pe = world.my_pe();
/// let array: UnsafeArray<usize> = UnsafeArray::new(&world,100,Distribution::Cyclic).block();
///
/// unsafe {
///
/// array.local_iter_mut().for_each(move |elem| *elem = my_pe)
/// .block();
/// }
pub unsafe fn local_iter_mut(&self) -> LocalIterMut<'static, T, UnsafeArray<T>> {
LocalIterMut::new(self.clone().into(), 0, 0)
}
#[doc(alias("One-sided", "onesided"))]
/// Create an immutable [OneSidedIterator] for this UnsafeArray
///
/// # Safety
/// Data in UnsafeArrays are always unsafe as there are no protections on how remote PE's may access any other PE's local data.
/// It is also possible to have mutable and immutable references to this arrays data on the same PE
///
/// # One-sided Operation
/// The iteration is launched and local to only the calling PE.
/// Data movement will occur with the remote PEs to transfer their data to the calling PE
///
/// # Examples
///```
/// use lamellar::array::prelude::*;
/// let world = LamellarWorldBuilder::new().build();
/// let my_pe = world.my_pe();
/// let array: UnsafeArray<usize> = UnsafeArray::new(&world,100,Distribution::Cyclic).block();
///
/// unsafe {
/// if my_pe == 0 {
/// for elem in array.onesided_iter().into_iter() { //"into_iter()" converts into a standard Rust Iterator
/// println!("PE{my_pe} elem {elem}");
/// }
/// }
/// }
///```
pub unsafe fn onesided_iter(&self) -> OneSidedIter<T, UnsafeArray<T>> {
OneSidedIter::new(self, 1)
}
#[doc(alias("One-sided", "onesided"))]
/// Create an immutable [OneSidedIterator] for this UnsafeArray
/// which will transfer and buffer `buf_size` elements at a time (to more efficient utilize the underlying lamellae network)
///
/// The buffering is transparent to the user.
///
/// This iterator typcially outperforms the non buffered version.
///
/// # Safety
/// Data in UnsafeArrays are always unsafe as there are no protections on how remote PE's may access any other PE's local data.
/// It is also possible to have mutable and immutable references to this arrays data on the same PE
///
/// # One-sided Operation
/// The iteration is launched and local to only the calling PE.
/// Data movement will occur with the remote PEs to transfer their data to the calling PE
///
/// # Examples
///```
/// use lamellar::array::prelude::*;
/// let world = LamellarWorldBuilder::new().build();
/// let my_pe = world.my_pe();
/// let array: UnsafeArray<usize> = UnsafeArray::new(&world,100,Distribution::Cyclic).block();
///
/// unsafe {
/// if my_pe == 0 {
/// for elem in array.buffered_onesided_iter(100).into_iter() { // "into_iter()" converts into a standard Rust Iterator
/// println!("PE{my_pe} elem {elem}");
/// }
/// }
/// }
///```
pub unsafe fn buffered_onesided_iter(
&self,
buf_size: usize,
) -> OneSidedIter<T, UnsafeArray<T>> {
OneSidedIter::new(self, std::cmp::min(buf_size, self.len()))
}
}