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!19442 adapt variable_memory_max_size range check 

Merge pull request !19442 from laiyongqiang/variable_max_size
This commit is contained in:
i-robot 2021-07-06 07:57:13 +00:00 committed by Gitee
parent 45d3f32f9d 8f4c6692b9
commit 8e4cd2ccdc
1 changed files with 14 additions and 8 deletions
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22
mindspore/ccsrc/runtime/device/ascend/ascend_memory_manager.cc
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@ -29,21 +29,24 @@ 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() {
uint64_t GetDeviceHBMSize() {
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;
MS_LOG(EXCEPTION) << "Get Device HBM memory size failed, ret = " << ret << ", total = " << total;
}
return total;
}
return total * 15 / 16; // reserved memory is 1/16 of total
uint64_t GetDefaultDeviceMemSize() {
auto total = GetDeviceHBMSize();
auto ret = total * 15 / 16; // reserved memory is 1/16 of total
MS_LOG(INFO) << "The Device HBM memory size is " << total << ", allocate " << ret << " for backend.";
return ret;
}
} // namespace
@ -89,8 +92,11 @@ uint64_t AscendMemoryManager::GetDeviceMemSizeFromContext() {
auto gb_str = variable_memory_max_size.substr(0, pos);
auto gb_var = std::stoull(gb_str);
MS_LOG(INFO) << "variable_memory_max_size(GB):" << gb_var;
if (gb_var > kAscendMaxDeviceMemGB || gb_var == 0) {
MS_LOG(EXCEPTION) << "Invalid allocate memory size:" << gb_var << " which should be in (0-31]GB";
auto total_hbm_size_GB = GetDeviceHBMSize() >> kMemSizeGB;
auto backend_max_size_GB = total_hbm_size_GB - 1; // reserved 1 GB for other component
if (gb_var > backend_max_size_GB || gb_var == 0) {
MS_LOG(EXCEPTION) << "The Total Device Memory Size is " << total_hbm_size_GB << " GB, variable_memory_max_size "
<< gb_var << " GB is out of range (0-" << backend_max_size_GB << "]GB";
}
return gb_var << kMemSizeGB;
}