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ircd::simt: Split is_pow() util to math header for now.

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This commit is contained in:
Jason Volk 2022-11-23 01:22:38 +00:00
parent 521a04730c
commit 0fb7577066
4 changed files with 23 additions and 8 deletions
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20
include/ircd/simt/math.h Normal file
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@ -0,0 +1,20 @@
// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2022 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_SIMT_MATH_H
#ifdef __OPENCL_VERSION__
inline bool
ircd_math_is_pow2(const uint val)
{
return val > 0 && (val & (val - 1)) == 0;
}
#endif

8
include/ircd/simt/reduce_add.h
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@ -11,14 +11,6 @@
#pragma once #pragma once
#define HAVE_IRCD_SIMT_REDUCE_ADD_H #define HAVE_IRCD_SIMT_REDUCE_ADD_H
#ifdef __OPENCL_VERSION__
inline bool
ircd_math_is_pow2(const uint val)
{
return val > 0 && (val & (val - 1)) == 0;
}
#endif
#ifdef __OPENCL_VERSION__ #ifdef __OPENCL_VERSION__
/// Sum all elements in the buffer. All threads in the group participate; /// Sum all elements in the buffer. All threads in the group participate;
/// result is placed in index [0], the rest of the buffer is trashed. /// result is placed in index [0], the rest of the buffer is trashed.

1
include/ircd/simt/simt.h
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@ -14,6 +14,7 @@
#include "portable.h" #include "portable.h"
#include "assert.h" #include "assert.h"
#include "cycles.h" #include "cycles.h"
#include "math.h"
#include "broadcast.h" #include "broadcast.h"
#include "reduce_add.h" #include "reduce_add.h"
#include "reduce_max.h" #include "reduce_max.h"

2
include/ircd/simt/sort.h
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@ -66,6 +66,8 @@ ircd_simt_sort_idx16_flldr(__local ushort *const idx,
const uint ln, const uint ln,
const uint li) const uint li)
{ {
assert(ircd_math_is_pow2(ln));
#pragma clang loop unroll(disable) #pragma clang loop unroll(disable)
for(uint up = 1; up < ln; up <<= 1) for(uint up = 1; up < ln; up <<= 1)
{ {