Danylo Lytovchenko
86 рядки
3.6 KiB
C++
86 рядки
3.6 KiB
C++
/*
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Copyright (c) 2023 Advanced Micro Devices, Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANNTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER INN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR INN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <hip_test_common.hh>
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#include <hip_test_helper.hh>
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#define ADDITIONAL_MEMORY_PERCENT 10
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// Stress allocation tests
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// Try to allocate as much memory as possible
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// But since max allocation can fail, we need to try the next value
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TEST_CASE("Stress_hipHostMalloc_MaxAllocation") {
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size_t devMemAvail{0}, devMemFree{0};
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HIP_CHECK(hipMemGetInfo(&devMemFree, &devMemAvail));
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auto hostMemFree = HipTest::getMemoryAmount() * 1024 * 1024; // In bytes
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REQUIRE(devMemFree > 0);
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REQUIRE(devMemAvail > 0);
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REQUIRE(hostMemFree > 0);
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// which is the limiter cpu or gpu
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size_t memFree = std::min(devMemFree, hostMemFree);
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char* d_ptr{nullptr};
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size_t counter{0};
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INFO("Max Allocation of " << memFree << " bytes!");
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while (hipHostMalloc(&d_ptr, memFree) != hipSuccess && memFree > 1) {
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counter++;
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INFO("Attempt to allocate " << memFree << " bytes out of " << devMemFree << "bytes Failed!");
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memFree >>= 1; // reduce the memory to be allocated by half
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REQUIRE(counter <= 2); // Make sure that we are atleast able to allocate
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// 1/4th of max memory
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}
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HIP_CHECK(hipMemset(d_ptr, 1, memFree));
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HIP_CHECK(hipDeviceSynchronize()); // Flush caches
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REQUIRE(std::all_of(d_ptr, d_ptr + memFree, [](unsigned char n) { return n == 1; }));
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HIP_CHECK(hipHostFree(d_ptr));
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}
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// Allocate more memory than total GPU memory in each available GPU.
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// hipHostMalloc should return hipSuccess.
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TEST_CASE("Stress_hipHostMalloc_MaxAllocation_AllGpu") {
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char* A = nullptr;
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size_t maxGpuMem = 0, availableMem = 0;
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int count = 0;
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HIP_CHECK(hipGetDeviceCount(&count));
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for (int dev = 0; dev < count; dev++) {
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// Get available GPU memory and total GPU memory
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HIP_CHECK(hipSetDevice(dev));
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HIP_CHECK(hipMemGetInfo(&availableMem, &maxGpuMem));
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size_t allocsize = maxGpuMem + ((maxGpuMem * ADDITIONAL_MEMORY_PERCENT) / 100);
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// Get free host In bytes
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size_t hostMemFree = HipTest::getMemoryAmount() * 1024 * 1024;
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if (allocsize < hostMemFree) {
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HIP_CHECK(hipHostMalloc(reinterpret_cast<void**>(&A), allocsize));
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// Check accessibility of memory
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constexpr size_t samplesize = 1024;
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constexpr int val = 32;
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// Write at beginning of memory chunk for a size of samplesize
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HIP_CHECK(hipMemset(A, val, samplesize));
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// Write at end of memory chunk for a size of samplesize
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HIP_CHECK(hipMemset((A + allocsize - 1 - samplesize), val, samplesize));
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HIP_CHECK(hipHostFree(A));
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} else {
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WARN("Skipping test as CPU memory is less than GPU memory");
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}
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}
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}
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