era_cudart 0.153.0

CUDA bindings for ZKsync
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

use std::iter::{FusedIterator, TrustedLen, TrustedRandomAccess, TrustedRandomAccessNoCoerce};
use std::slice;

use crate::slice::cuda_slice::{CudaSlice, CudaSliceMut};
use crate::slice::device_slice::DeviceSlice;

#[repr(transparent)]
pub struct Chunks<'a, T>(slice::Chunks<'a, T>);

impl<'a, T: 'a> Chunks<'a, T> {
    #[inline]
    pub(super) fn new(slice: &'a DeviceSlice<T>, size: usize) -> Self {
        unsafe { Self(slice.as_slice().chunks(size)) }
    }

    #[inline]
    fn map_option(option: Option<&'a [T]>) -> Option<&'a DeviceSlice<T>> {
        unsafe { option.map(|s| DeviceSlice::from_slice(s)) }
    }
}

impl<T> Clone for Chunks<'_, T> {
    fn clone(&self) -> Self {
        Self(self.0.clone())
    }
}

impl<'a, T> Iterator for Chunks<'a, T> {
    type Item = &'a DeviceSlice<T>;

    #[inline]
    fn next(&mut self) -> Option<Self::Item> {
        Self::map_option(self.0.next())
    }

    #[inline]
    fn size_hint(&self) -> (usize, Option<usize>) {
        self.0.size_hint()
    }

    #[inline]
    fn count(self) -> usize {
        self.0.len()
    }

    #[inline]
    fn last(self) -> Option<Self::Item> {
        Self::map_option(self.0.last())
    }

    #[inline]
    fn nth(&mut self, n: usize) -> Option<Self::Item> {
        Self::map_option(self.0.nth(n))
    }

    unsafe fn __iterator_get_unchecked(&mut self, idx: usize) -> Self::Item {
        DeviceSlice::from_slice(self.0.__iterator_get_unchecked(idx))
    }
}

impl<'a, T> DoubleEndedIterator for Chunks<'a, T> {
    #[inline]
    fn next_back(&mut self) -> Option<Self::Item> {
        Self::map_option(self.0.next_back())
    }

    #[inline]
    fn nth_back(&mut self, n: usize) -> Option<Self::Item> {
        Self::map_option(self.0.nth_back(n))
    }
}

impl<T> ExactSizeIterator for Chunks<'_, T> {}

unsafe impl<T> TrustedLen for Chunks<'_, T> {}

impl<T> FusedIterator for Chunks<'_, T> {}

#[doc(hidden)]
unsafe impl<'a, T> TrustedRandomAccess for Chunks<'a, T> {}

#[doc(hidden)]
unsafe impl<'a, T> TrustedRandomAccessNoCoerce for Chunks<'a, T> {
    const MAY_HAVE_SIDE_EFFECT: bool = false;
}

#[repr(transparent)]
pub struct ChunksMut<'a, T>(slice::ChunksMut<'a, T>);

impl<'a, T: 'a> ChunksMut<'a, T> {
    #[inline]
    pub(super) fn new(slice: &'a mut DeviceSlice<T>, size: usize) -> Self {
        unsafe { Self(slice.as_mut_slice().chunks_mut(size)) }
    }

    #[inline]
    fn map_option(option: Option<&'a mut [T]>) -> Option<&'a mut DeviceSlice<T>> {
        unsafe { option.map(|s| DeviceSlice::from_mut_slice(s)) }
    }
}

impl<'a, T> Iterator for ChunksMut<'a, T> {
    type Item = &'a mut DeviceSlice<T>;

    #[inline]
    fn next(&mut self) -> Option<Self::Item> {
        Self::map_option(self.0.next())
    }

    #[inline]
    fn size_hint(&self) -> (usize, Option<usize>) {
        self.0.size_hint()
    }

    #[inline]
    fn count(self) -> usize {
        self.len()
    }

    #[inline]
    fn last(self) -> Option<Self::Item> {
        Self::map_option(self.0.last())
    }

    #[inline]
    fn nth(&mut self, n: usize) -> Option<Self::Item> {
        Self::map_option(self.0.nth(n))
    }

    unsafe fn __iterator_get_unchecked(&mut self, idx: usize) -> Self::Item {
        DeviceSlice::from_mut_slice(self.0.__iterator_get_unchecked(idx))
    }
}

impl<'a, T> DoubleEndedIterator for ChunksMut<'a, T> {
    #[inline]
    fn next_back(&mut self) -> Option<Self::Item> {
        Self::map_option(self.0.next_back())
    }

    #[inline]
    fn nth_back(&mut self, n: usize) -> Option<Self::Item> {
        Self::map_option(self.0.nth_back(n))
    }
}

impl<T> ExactSizeIterator for ChunksMut<'_, T> {}

unsafe impl<T> TrustedLen for ChunksMut<'_, T> {}

impl<T> FusedIterator for ChunksMut<'_, T> {}

#[doc(hidden)]
unsafe impl<'a, T> TrustedRandomAccess for ChunksMut<'a, T> {}

#[doc(hidden)]
unsafe impl<'a, T> TrustedRandomAccessNoCoerce for ChunksMut<'a, T> {
    const MAY_HAVE_SIDE_EFFECT: bool = false;
}

unsafe impl<T> Send for ChunksMut<'_, T> where T: Send {}

unsafe impl<T> Sync for ChunksMut<'_, T> where T: Sync {}