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48 lines
990 B
C++
48 lines
990 B
C++
// Copyright (c) Advanced Micro Devices, Inc., or its affiliates.
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// SPDX-License-Identifier: MIT
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#pragma once
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#include <hip/hip_runtime.h>
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#include "ck/stream_config.hpp"
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#include "ck/host_utility/hip_check_error.hpp"
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namespace ck {
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static inline int getAvailableComputeUnitCount(const StreamConfig& stream_config)
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{
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constexpr int MAX_MASK_DWORDS = 64;
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// assume at most 64*32 = 2048 CUs
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uint32_t cuMask[MAX_MASK_DWORDS];
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for(int i = 0; i < MAX_MASK_DWORDS; i++)
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cuMask[i] = 0;
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auto countSetBits = [](uint32_t dword) {
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int count = 0;
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while(dword != 0)
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{
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if(dword & 0x1)
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count++;
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dword = dword >> 1;
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};
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return (count);
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};
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hip_check_error(hipExtStreamGetCUMask(stream_config.stream_id_, MAX_MASK_DWORDS, &cuMask[0]));
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int ret = 0;
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for(int i = 0; i < MAX_MASK_DWORDS; i++)
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ret += countSetBits(cuMask[i]);
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return (ret);
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};
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} // namespace ck
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