vllm/csrc/cuda_utils_kernels.cu
2025-02-12 19:51:51 -08:00

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#include "cuda_utils.h"
#ifdef USE_ROCM
#include <hip/hip_runtime.h>
#include <hip/hip_runtime_api.h>
#endif
int64_t get_device_attribute(int64_t attribute, int64_t device_id) {
// Return the cached value on subsequent calls
static int value = [=]() {
int device = static_cast<int>(device_id);
if (device < 0) {
CUDA_CHECK(cudaGetDevice(&device));
}
int value;
CUDA_CHECK(cudaDeviceGetAttribute(
&value, static_cast<cudaDeviceAttr>(attribute), device));
return static_cast<int>(value);
}();
return value;
}
int64_t get_max_shared_memory_per_block_device_attribute(int64_t device_id) {
int64_t attribute;
// https://docs.nvidia.com/cuda/cuda-runtime-api/group__CUDART__TYPES.html
// cudaDevAttrMaxSharedMemoryPerBlockOptin = 97 if not is_hip() else 74
#ifdef USE_ROCM
attribute = hipDeviceAttributeMaxSharedMemoryPerBlock;
#else
attribute = cudaDevAttrMaxSharedMemoryPerBlockOptin;
#endif
return get_device_attribute(attribute, device_id);
}