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[cuda] Dump useful GPU characteristics #13955

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Jun 5, 2023
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[cuda] Dump useful GPU characteristics #13955

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158 changes: 153 additions & 5 deletions experimental/cuda2/cuda_driver.c
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Original file line number Diff line number Diff line change
Expand Up @@ -246,12 +246,160 @@ static iree_status_t iree_hal_cuda2_driver_query_available_devices(
static iree_status_t iree_hal_cuda2_driver_dump_device_info(
iree_hal_driver_t* base_driver, iree_hal_device_id_t device_id,
iree_string_builder_t* builder) {
IREE_ASSERT_ARGUMENT(base_driver);
IREE_ASSERT_ARGUMENT(builder);
iree_hal_cuda2_driver_t* driver = iree_hal_cuda2_driver_cast(base_driver);
CUdevice device = (CUdevice)device_id;
if (!device) return iree_ok_status();
// TODO: dump detailed device info.
(void)driver;
(void)device;
CUdevice device = IREE_DEVICE_ID_TO_CUDEVICE(device_id);

#define IREE_CUDA_QUERY_ATTRIBUTE(attribute, value) \
IREE_CUDA_RETURN_IF_ERROR( \
&driver->cuda_symbols, \
cuDeviceGetAttribute(&value, CU_DEVICE_ATTRIBUTE_##attribute, device), \
"cuDeviceGetAttribute");

int compute_capability_major = 0, compute_capability_minor = 0;
IREE_CUDA_QUERY_ATTRIBUTE(COMPUTE_CAPABILITY_MAJOR, compute_capability_major);
IREE_CUDA_QUERY_ATTRIBUTE(COMPUTE_CAPABILITY_MINOR, compute_capability_minor);
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- gpu-compute-capability: %d.%d", compute_capability_major,
compute_capability_minor));

int driver_version = 0;
IREE_CUDA_RETURN_IF_ERROR(&driver->cuda_symbols,
cuDriverGetVersion(&driver_version),
"cuDriverGetVersion");
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- driver-max-cuda-version: %d.%d", driver_version / 1000,
(driver_version % 1000) / 10));

// Launch configuration limits.
int max_block_dim_x = 0, max_block_dim_y = 0, max_block_dim_z = 0;
int max_grid_dim_x = 0, max_grid_dim_y = 0, max_grid_dim_z = 0;
IREE_CUDA_QUERY_ATTRIBUTE(MAX_BLOCK_DIM_X, max_block_dim_x);
IREE_CUDA_QUERY_ATTRIBUTE(MAX_BLOCK_DIM_Y, max_block_dim_y);
IREE_CUDA_QUERY_ATTRIBUTE(MAX_BLOCK_DIM_Z, max_block_dim_z);
IREE_CUDA_QUERY_ATTRIBUTE(MAX_GRID_DIM_X, max_grid_dim_x);
IREE_CUDA_QUERY_ATTRIBUTE(MAX_GRID_DIM_Y, max_grid_dim_y);
IREE_CUDA_QUERY_ATTRIBUTE(MAX_GRID_DIM_Z, max_grid_dim_z);

IREE_RETURN_IF_ERROR(iree_string_builder_append_cstring(builder, "\n"));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- launch-max-block-dims: (%d, %d, %d)", max_block_dim_x,
max_block_dim_y, max_block_dim_z));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- launch-max-grid-dims: (%d, %d, %d)", max_grid_dim_x,
max_grid_dim_y, max_grid_dim_z));

// Per block resource limits.
int max_threads_per_block = 0;
int max_registers_per_block = 0;
int max_shared_memory_per_block = 0;
IREE_CUDA_QUERY_ATTRIBUTE(MAX_THREADS_PER_BLOCK, max_threads_per_block);
IREE_CUDA_QUERY_ATTRIBUTE(MAX_REGISTERS_PER_BLOCK, max_registers_per_block);
IREE_CUDA_QUERY_ATTRIBUTE(MAX_SHARED_MEMORY_PER_BLOCK,
max_shared_memory_per_block);

IREE_RETURN_IF_ERROR(iree_string_builder_append_cstring(builder, "\n"));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- block-max-thread-count: %d", max_threads_per_block));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- block-max-32-bit-register-count: %d",
max_registers_per_block));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- block-max-shared-memory: %d bytes",
max_shared_memory_per_block));

// Per multiprocessor resource limits.
int max_threads_per_multiprocessor = 0;
int max_blocks_per_multiprocessor = 0;
int max_registers_per_multiprocessor = 0;
int max_shared_memory_per_multiprocessor = 0;
IREE_CUDA_QUERY_ATTRIBUTE(MAX_THREADS_PER_MULTIPROCESSOR,
max_threads_per_multiprocessor);
IREE_CUDA_QUERY_ATTRIBUTE(MAX_BLOCKS_PER_MULTIPROCESSOR,
max_blocks_per_multiprocessor);
IREE_CUDA_QUERY_ATTRIBUTE(MAX_REGISTERS_PER_MULTIPROCESSOR,
max_registers_per_multiprocessor);
IREE_CUDA_QUERY_ATTRIBUTE(MAX_SHARED_MEMORY_PER_MULTIPROCESSOR,
max_shared_memory_per_multiprocessor);

IREE_RETURN_IF_ERROR(iree_string_builder_append_cstring(builder, "\n"));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- multiprocessor-max-thread-count: %d",
max_threads_per_multiprocessor));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- multiprocessor-max-block-count: %d",
max_blocks_per_multiprocessor));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- multiprocessor-max-32-bit-register-count: %d",
max_registers_per_multiprocessor));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- multiprocessor-max-shared-memory: %d bytes",
max_shared_memory_per_multiprocessor));

// Memory characteristics.
int has_unified_address_space = 0;
int supports_managed_memory = 0;
int can_map_host_memory = 0;
int supports_pageable_memory_access = 0;
int supports_concurrent_managed_access = 0;
int supports_memory_pools = 0;
int l2_cache_size = 0;
IREE_CUDA_QUERY_ATTRIBUTE(UNIFIED_ADDRESSING, has_unified_address_space);
IREE_CUDA_QUERY_ATTRIBUTE(MANAGED_MEMORY, supports_managed_memory);
IREE_CUDA_QUERY_ATTRIBUTE(CAN_MAP_HOST_MEMORY, can_map_host_memory);
IREE_CUDA_QUERY_ATTRIBUTE(PAGEABLE_MEMORY_ACCESS,
supports_pageable_memory_access);
IREE_CUDA_QUERY_ATTRIBUTE(CONCURRENT_MANAGED_ACCESS,
supports_concurrent_managed_access);
IREE_CUDA_QUERY_ATTRIBUTE(MEMORY_POOLS_SUPPORTED, supports_memory_pools);
IREE_CUDA_QUERY_ATTRIBUTE(L2_CACHE_SIZE, l2_cache_size);

IREE_RETURN_IF_ERROR(iree_string_builder_append_cstring(builder, "\n"));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- memory-has-unified-address-space: %d",
has_unified_address_space));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- memory-supports-managed-memory: %d",
supports_managed_memory));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- memory-can-map-host-memory-to-device: %d",
can_map_host_memory));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- memory-supports-pageable-memory-access-from-device: %d",
supports_pageable_memory_access));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- memory-supports-concurrent-managed-access: %d",
supports_concurrent_managed_access));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- memory-supports-memory-pools: %d", supports_memory_pools));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- memory-l2-cache-size: %d bytes", l2_cache_size));

// Other GPU characteristics.
int multiprocessor_count = 0;
IREE_CUDA_QUERY_ATTRIBUTE(MULTIPROCESSOR_COUNT, multiprocessor_count);
int clock_rate = 0;
IREE_CUDA_QUERY_ATTRIBUTE(CLOCK_RATE, clock_rate);
int warp_size = 0;
IREE_CUDA_QUERY_ATTRIBUTE(WARP_SIZE, warp_size);
int execution_timeout = 0;
IREE_CUDA_QUERY_ATTRIBUTE(KERNEL_EXEC_TIMEOUT, execution_timeout);

IREE_RETURN_IF_ERROR(iree_string_builder_append_cstring(builder, "\n"));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- gpu-multiprocessor-count: %d", multiprocessor_count));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- gpu-clock-rate: %d kHz", clock_rate));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- gpu-warp-size: %d", warp_size));
IREE_RETURN_IF_ERROR(iree_string_builder_append_format(
builder, "\n- kernel-has-execution-timeout: %d", execution_timeout));

IREE_RETURN_IF_ERROR(iree_string_builder_append_cstring(builder, "\n"));

#undef IREE_CUDA_QUERY_ATTRIBUTE

return iree_ok_status();
}

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1 change: 1 addition & 0 deletions experimental/cuda2/cuda_dynamic_symbol_table.h
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

IREE_CU_PFN_DECL(cuDriverGetVersion, int*)
IREE_CU_PFN_DECL(cuCtxCreate, CUcontext*, unsigned int, CUdevice)
IREE_CU_PFN_DECL(cuCtxDestroy, CUcontext)
IREE_CU_PFN_DECL(cuDevicePrimaryCtxRetain, CUcontext*, CUdevice)
Expand Down