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!18494 dynamic default memory size for vnpu 

Merge pull request !18494 from zhoufeng/vnpu
This commit is contained in:
i-robot 2021-06-30 01:55:52 +00:00 committed by Gitee
parent 1aefa5fe10 b9378e36c3
commit 930755a16b
2 changed files with 19 additions and 2 deletions
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19
mindspore/ccsrc/runtime/device/ascend/ascend_memory_manager.cc
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@ -27,14 +27,29 @@ using mindspore::profiler::MemoryProfiling;
namespace mindspore {
namespace device {
namespace ascend {
namespace {
constexpr uint64_t kAscendInitDeviceMemGB = 30;
constexpr uint64_t kAscendMaxDeviceMemGB = 31;
constexpr uint64_t kMemSizeGB = 30;
constexpr uint64_t kAscendDeviceMemSize = (kAscendInitDeviceMemGB << kMemSizeGB);
uint64_t GetDefaultDeviceMemSize() {
size_t free = 0;
size_t total = 0;
rtError_t ret = rtMemGetInfoEx(RT_MEMORYINFO_HBM, &free, &total);
if (ret != RT_ERROR_NONE || total == 0) {
MS_LOG(WARNING) << "Get total HBM memory size failed, ret = " << ret << ", use default value "
<< kAscendDeviceMemSize;
return kAscendDeviceMemSize;
}
return total * 15 / 16; // reserved memory is 1/16 of total
}
} // namespace
void AscendMemoryManager::MallocDeviceMemory() {
auto context_mem = GetDeviceMemSizeFromContext();
device_mem_size_ = context_mem == 0 ? kAscendDeviceMemSize : context_mem;
device_mem_size_ = context_mem == 0 ? GetDefaultDeviceMemSize() : context_mem;
auto ret = rtMalloc(reinterpret_cast<void **>(&device_mem_base_), device_mem_size_, RT_MEMORY_HBM);
if (ret != ACL_RT_SUCCESS) {
if (ret == ACL_ERROR_RT_MEMORY_ALLOCATION) {
@ -56,7 +71,7 @@ void AscendMemoryManager::MallocDeviceMemory() {
uint64_t AscendMemoryManager::GetDeviceMemSize() {
auto mem_size = GetDeviceMemSizeFromContext();
return mem_size == 0 ? kAscendDeviceMemSize : mem_size;
return mem_size == 0 ? GetDefaultDeviceMemSize() : mem_size;
}
uint64_t AscendMemoryManager::GetDeviceMemSizeFromContext() {

2
tests/ut/cpp/stub/runtime/runtime_stub.cc
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@ -195,3 +195,5 @@ RTS_API rtError_t rtKernelLaunchWithFlag(const void *stubFunc, uint32_t blockDim
rtSmDesc_t *smDesc, rtStream_t stream, uint32_t flags) {
return RT_ERROR_NONE;
}
RTS_API rtError_t rtMemGetInfoEx(rtMemInfoType_t memInfoType, size_t *free, size_t *total) { return RT_ERROR_NONE; }