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SWDEV-298757 - hipMallocManaged.cc Adding basic and rigorous scenarios related to hipMallocManaged() api. (#2379)

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* SWDEV-298757 - Adding test case to test hipMemAdvise() on mmap() memory

Change-Id: Ib8d57d2249d0bb6780c9fdef21907568c22db66c
This commit is contained in:
lthakur
2021-10-06 17:37:26 +05:30
committed by GitHub
parent b86c5fb60e
commit 211b191be9
2 changed files with 327 additions and 0 deletions
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catch/unit/memory/CMakeLists.txt
+2
View File
@@ -47,6 +47,7 @@ set(TEST_SRC
hipMallocManagedFlagsTst.cc
hipMemPrefetchAsyncExtTsts.cc
hipMemAdviseMmap.cc
hipMallocManaged.cc
)
else()
set(TEST_SRC
@@ -94,6 +95,7 @@ set(TEST_SRC
hipMallocManagedFlagsTst.cc
hipMemPrefetchAsyncExtTsts.cc
hipMemAdviseMmap.cc
hipMallocManaged.cc
)
endif()
# Create shared lib of all tests
catch/unit/memory/hipMallocManaged.cc
+325
View File
@@ -0,0 +1,325 @@
/*
Copyright (c) 2021 Advanced Micro Devices, Inc. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANNTY OF ANY KIND, EXPRESS OR
IMPLIED, INNCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANNY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER INN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR INN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
/*
List of Test cases:
1) Unit_hipMallocManaged_Basic
2) Unit_hipMallocManaged_MultiSize
3) Unit_hipMallocManaged_MultiKrnlHmmAccess
4) Unit_hipMallocManaged_KrnlWth2MemTypes
*/
#include <hip_test_common.hh>
#include <hip_test_kernels.hh>
#include <hip_test_checkers.hh>
// Kernel functions
__global__ void KrnlWth2MemTypes(int *Hmm, int *Dptr, size_t n) {
size_t index = blockIdx.x * blockDim.x + threadIdx.x;
for (size_t i = index; i < n; i++) {
Hmm[i] = Dptr[i] + 10;
}
}
__global__ void KernelMul_MngdMem(int *Hmm, int *Dptr, size_t n) {
size_t index = blockIdx.x * blockDim.x + threadIdx.x;
size_t stride = blockDim.x * gridDim.x;
for (size_t i = index; i < n; i += stride) {
Hmm[i] = Dptr[i] * 10;
}
}
__global__ void KernelMulAdd_MngdMem(int *Hmm, size_t n) {
size_t index = blockIdx.x * blockDim.x + threadIdx.x;
size_t stride = blockDim.x * gridDim.x;
for (size_t i = index; i < n; i += stride) {
Hmm[i] = Hmm[i] * 2 + 10;
}
}
__global__ void KrnlWth2MemTypesC(unsigned char *Hmm, unsigned char *Dptr,
size_t n) {
size_t index = blockIdx.x * blockDim.x + threadIdx.x;
size_t stride = blockDim.x * gridDim.x;
for (size_t i = index; i < n; i += stride) {
Hmm[i] = Dptr[i] + 10;
}
}
// The following variable will be used to get the result of computation
// from multiple threads
static bool IfTestPassed = true;
static int HmmAttrPrint() {
int managed = 0;
INFO("The following are the attribute values related to HMM for"
" device 0:\n");
HIP_CHECK(hipDeviceGetAttribute(&managed,
hipDeviceAttributeDirectManagedMemAccessFromHost, 0));
INFO("hipDeviceAttributeDirectManagedMemAccessFromHost: " << managed);
HIP_CHECK(hipDeviceGetAttribute(&managed,
hipDeviceAttributeConcurrentManagedAccess, 0));
INFO("hipDeviceAttributeConcurrentManagedAccess: " << managed);
HIP_CHECK(hipDeviceGetAttribute(&managed,
hipDeviceAttributePageableMemoryAccess, 0));
INFO("hipDeviceAttributePageableMemoryAccess: " << managed);
HIP_CHECK(hipDeviceGetAttribute(&managed,
hipDeviceAttributePageableMemoryAccessUsesHostPageTables, 0));
INFO("hipDeviceAttributePageableMemoryAccessUsesHostPageTables:"
<< managed);
HIP_CHECK(hipDeviceGetAttribute(&managed, hipDeviceAttributeManagedMemory,
0));
INFO("hipDeviceAttributeManagedMemory: " << managed);
return managed;
}
static void LaunchKrnl4(size_t NumElms, int InitVal) {
int *Hmm = NULL, *Dptr = NULL, blockSize = 64, DataMismatch = 0;
hipStream_t strm;
HIP_CHECK(hipStreamCreate(&strm));
HIP_CHECK(hipMallocManaged(&Hmm, (sizeof(int) * NumElms)));
HIP_CHECK(hipMalloc(&Dptr, (sizeof(int) * NumElms)));
int *Hstptr = reinterpret_cast<int*>(new int[NumElms]);
for (size_t i = 0; i < NumElms; ++i) {
Hstptr[i] = InitVal;
}
HIP_CHECK(hipMemcpy(Dptr, Hstptr, (NumElms * sizeof(int)),
hipMemcpyHostToDevice));
dim3 dimBlock(blockSize, 1, 1);
dim3 dimGrid((NumElms + blockSize -1)/blockSize, 1, 1);
KrnlWth2MemTypes<<<dimGrid, dimBlock, 0, strm>>>(Hmm, Dptr, NumElms);
HIP_CHECK(hipStreamSynchronize(strm));
for (size_t i = 0; i < NumElms; ++i) {
if (Hmm[i] != (InitVal + 10)) {
DataMismatch++;
}
}
if (DataMismatch != 0) {
INFO("Data Mismatch observed after the Kernel: KrnlWth2MemTypes!!\n");
REQUIRE(false);
}
DataMismatch = 0;
KernelMul_MngdMem<<<dimGrid, dimBlock, 0, strm>>>(Hmm, Dptr, NumElms);
HIP_CHECK(hipStreamSynchronize(strm));
// Verifying the result
for (size_t i = 0; i < NumElms; ++i) {
if (Hmm[i] != (InitVal * 10)) {
DataMismatch++;
}
}
if (DataMismatch != 0) {
INFO("Data Mismatch observedafter the Kernel: KernelMul_MngdMem!!\n");
REQUIRE(false);
}
DataMismatch = 0;
KernelMulAdd_MngdMem<<<dimGrid, dimBlock, 0, strm>>>(Hmm, NumElms);
HIP_CHECK(hipStreamSynchronize(strm));
// Verifying the result
for (size_t i = 0; i < NumElms; ++i) {
if (Hmm[i] != (InitVal * 10 * 2 + 10)) {
DataMismatch++;
}
}
if (DataMismatch != 0) {
INFO("Data Mismatch observedafter the Kernel: KernelMul_MngdMem!!\n");
REQUIRE(false);
}
delete[] Hstptr;
}
static size_t N{4 * 1024 * 1024};
static unsigned blocksPerCU{6};
static unsigned threadsPerBlock{256};
/*
This testcase verifies the hipMallocManaged basic scenario
*/
TEST_CASE("Unit_hipMallocManaged_Basic") {
int numElements = (N < (64 * 1024 * 1024)) ? 64 * 1024 * 1024 : N;
float *A, *B, *C;
HIP_CHECK(hipMallocManaged(&A, numElements*sizeof(float)));
HIP_CHECK(hipMallocManaged(&B, numElements*sizeof(float)));
HIP_CHECK(hipMallocManaged(&C, numElements*sizeof(float)));
HipTest::setDefaultData(numElements, A, B, C);
hipDevice_t device = hipCpuDeviceId;
HIP_CHECK(hipMemAdvise(A, numElements*sizeof(float),
hipMemAdviseSetReadMostly, device));
HIP_CHECK(hipMemPrefetchAsync(A, numElements*sizeof(float), 0));
HIP_CHECK(hipMemPrefetchAsync(B, numElements*sizeof(float), 0));
HIP_CHECK(hipDeviceSynchronize());
HIP_CHECK(hipMemRangeGetAttribute(&device, sizeof(device),
hipMemRangeAttributeLastPrefetchLocation,
A, numElements*sizeof(float)));
if (device != 0) {
INFO("hipMemRangeGetAttribute error, device = " << device);
}
uint32_t read_only = 0xf;
HIP_CHECK(hipMemRangeGetAttribute(&read_only, sizeof(read_only),
hipMemRangeAttributeReadMostly,
A, numElements*sizeof(float)));
if (read_only != 1) {
SUCCEED("hipMemRangeGetAttribute error, read_only = " << read_only);
}
unsigned blocks = HipTest::setNumBlocks(blocksPerCU, threadsPerBlock,
numElements);
hipEvent_t event0, event1;
HIP_CHECK(hipEventCreate(&event0));
HIP_CHECK(hipEventCreate(&event1));
HIP_CHECK(hipEventRecord(event0, 0));
hipLaunchKernelGGL(HipTest::vectorADD, dim3(blocks), dim3(threadsPerBlock),
0, 0, static_cast<const float*>(A),
static_cast<const float*>(B), C, numElements);
HIP_CHECK(hipEventRecord(event1, 0));
HIP_CHECK(hipDeviceSynchronize());
float time = 0.0f;
HIP_CHECK(hipEventElapsedTime(&time, event0, event1));
printf("Time %.3f ms\n", time);
float maxError = 0.0f;
HIP_CHECK(hipMemPrefetchAsync(B, numElements*sizeof(float),
hipCpuDeviceId));
HIP_CHECK(hipDeviceSynchronize());
device = 0;
HIP_CHECK(hipMemRangeGetAttribute(&device, sizeof(device),
hipMemRangeAttributeLastPrefetchLocation,
A, numElements*sizeof(float)));
if (device != hipCpuDeviceId) {
SUCCEED("hipMemRangeGetAttribute error device = " << device);
}
for (int i = 0; i < numElements; i++) {
maxError = fmax(maxError, fabs(B[i]-3.0f));
}
HIP_CHECK(hipFree(A));
HIP_CHECK(hipFree(B));
REQUIRE(maxError != 0.0f);
}
// The following test case tests the behavior of kernel with a HMM memory and
// hipMalloc memory
TEST_CASE("Unit_hipMallocManaged_KrnlWth2MemTypes") {
IfTestPassed = true;
int *Hmm = NULL, *Dptr = NULL, InitVal = 123;
size_t NumElms = (1024 * 1024);
int *Hptr = new int[NumElms], blockSize = 64, DataMismatch = 0;
int managed = HmmAttrPrint();
if (managed == 1) {
hipStream_t strm;
HIP_CHECK(hipStreamCreate(&strm));
HIP_CHECK(hipMallocManaged(&Hmm, sizeof(int) * NumElms));
HIP_CHECK(hipMalloc(&Dptr, sizeof(int) * NumElms));
for (int i = 0; i < NumElms; ++i) {
Hmm[i] = 0;
Hptr[i] = InitVal;
}
HIP_CHECK(hipMemcpy(Dptr, Hptr, sizeof(int) * NumElms,
hipMemcpyHostToDevice));
dim3 dimBlock(blockSize, 1, 1);
dim3 dimGrid((NumElms + blockSize -1)/blockSize, 1, 1);
KrnlWth2MemTypes<<<dimGrid, dimBlock, 0, strm>>>(Hmm, Dptr, NumElms);
HIP_CHECK(hipStreamSynchronize(strm));
// Verifying the results
for (int k = 0; k < NumElms; ++k) {
if (Hmm[k] != (InitVal + 10)) {
DataMismatch++;
}
}
if (DataMismatch != 0) {
WARN("DataMismatch observed!\n");
IfTestPassed = false;
}
HIP_CHECK(hipFree(Hmm));
HIP_CHECK(hipFree(Dptr));
delete[] Hptr;
REQUIRE(IfTestPassed);
} else {
SUCCEED("GPU 0 doesn't support hipDeviceAttributeManagedMemory "
"attribute. Hence skipping the testing with Pass result.\n");
}
}
// The following test case tests when the same Hmm memory is used for
// launching multiple different kernels will results in any issue
TEST_CASE("Unit_hipMallocManaged_MultiKrnlHmmAccess") {
int managed = HmmAttrPrint();
if (managed) {
int InitVal = 123, NumElms = (1024 * 1024);
LaunchKrnl4(NumElms, InitVal);
} else {
SUCCEED("GPU 0 doesn't support hipDeviceAttributeManagedMemory "
"attribute. Hence skipping the testing with Pass result.\n");
}
}
// The following test case allocation, host access, device access of HMM
// memory from size 1 to 10KB
TEST_CASE("Unit_hipMallocManaged_MultiSize") {
IfTestPassed = true;
int managed = HmmAttrPrint();
if (managed == 1) {
unsigned char *Hmm1 = NULL, *Hmm2 = NULL;
int InitVal = 100, blockSize = 64, DataMismatch = 0;
hipStream_t strm;
HIP_CHECK(hipStreamCreate(&strm));
dim3 dimBlock(blockSize, 1, 1);
for (int i = 1; i < (1024*1024); ++i) {
HIP_CHECK(hipMallocManaged(&Hmm1, i));
HIP_CHECK(hipMallocManaged(&Hmm2, i));
for (int j = 0; j < i; ++j) {
Hmm1[j] = InitVal;
}
dim3 dimGrid((i + blockSize -1)/blockSize, 1, 1);
KrnlWth2MemTypesC<<<dimGrid, dimBlock, 0, strm>>>(Hmm2, Hmm1, i);
HIP_CHECK(hipStreamSynchronize(strm));
// Verifying the results
for (int k = 0; k < i; ++k) {
if (Hmm2[k] != (InitVal + 10)) {
DataMismatch++;
}
}
if (DataMismatch != 0) {
WARN("DataMismatch observed!\n");
IfTestPassed = false;
}
DataMismatch = 0;
HIP_CHECK(hipFree(Hmm1));
HIP_CHECK(hipFree(Hmm2));
REQUIRE(IfTestPassed);
}
} else {
SUCCEED("GPU 0 doesn't support hipDeviceAttributeManagedMemory "
"attribute. Hence skipping the testing with Pass result.\n");
}
}