dc94f2cbad
Introduced in OpenMP 6.0, the device UID shall be a unique identifier of a device on a given system. (Not necessarily a UUID.) Since it is not guaranteed that the (U)UIDs defined by the device vendor libraries, such as HSA, do not overlap with those of other vendors, the device UIDs in offload are always combined with the offload plugin name. In case the vendor library does not specify any device UID for a given device, we fall back to the offload-internal device ID. The device UID can be retrieved using the `llvm-offload-device-info` tool.
279 lines
9.6 KiB
C++
279 lines
9.6 KiB
C++
//===- llvm-offload-device-info.cpp - Print liboffload properties ---------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This is a command line utility that, by using the new liboffload API, prints
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// all devices and properties
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//
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//===----------------------------------------------------------------------===//
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#include <OffloadAPI.h>
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#include <iostream>
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#include <vector>
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#define OFFLOAD_ERR(X) \
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if (auto Err = X) { \
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return Err; \
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}
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enum class PrintKind {
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NORMAL,
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FP_FLAGS,
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};
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template <typename T, PrintKind PK = PrintKind::NORMAL>
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void doWrite(std::ostream &S, T &&Val) {
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S << Val;
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}
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template <>
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void doWrite<ol_platform_backend_t>(std::ostream &S,
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ol_platform_backend_t &&Val) {
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switch (Val) {
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case OL_PLATFORM_BACKEND_UNKNOWN:
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S << "UNKNOWN";
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break;
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case OL_PLATFORM_BACKEND_CUDA:
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S << "CUDA";
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break;
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case OL_PLATFORM_BACKEND_AMDGPU:
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S << "AMDGPU";
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break;
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case OL_PLATFORM_BACKEND_HOST:
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S << "HOST";
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break;
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default:
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S << "<< INVALID >>";
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break;
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}
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}
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template <>
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void doWrite<ol_device_type_t>(std::ostream &S, ol_device_type_t &&Val) {
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switch (Val) {
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case OL_DEVICE_TYPE_GPU:
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S << "GPU";
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break;
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case OL_DEVICE_TYPE_CPU:
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S << "CPU";
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break;
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case OL_DEVICE_TYPE_HOST:
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S << "HOST";
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break;
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default:
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S << "<< INVALID >>";
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break;
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}
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}
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template <>
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void doWrite<ol_dimensions_t>(std::ostream &S, ol_dimensions_t &&Val) {
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S << "{x: " << Val.x << ", y: " << Val.y << ", z: " << Val.z << "}";
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}
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template <>
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void doWrite<ol_device_fp_capability_flags_t, PrintKind::FP_FLAGS>(
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std::ostream &S, ol_device_fp_capability_flags_t &&Val) {
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S << Val << " {";
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if (Val & OL_DEVICE_FP_CAPABILITY_FLAG_CORRECTLY_ROUNDED_DIVIDE_SQRT) {
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S << " CORRECTLY_ROUNDED_DIVIDE_SQRT";
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}
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if (Val & OL_DEVICE_FP_CAPABILITY_FLAG_ROUND_TO_NEAREST) {
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S << " ROUND_TO_NEAREST";
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}
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if (Val & OL_DEVICE_FP_CAPABILITY_FLAG_ROUND_TO_ZERO) {
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S << " ROUND_TO_ZERO";
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}
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if (Val & OL_DEVICE_FP_CAPABILITY_FLAG_ROUND_TO_INF) {
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S << " ROUND_TO_INF";
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}
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if (Val & OL_DEVICE_FP_CAPABILITY_FLAG_INF_NAN) {
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S << " INF_NAN";
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}
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if (Val & OL_DEVICE_FP_CAPABILITY_FLAG_DENORM) {
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S << " DENORM";
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}
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if (Val & OL_DEVICE_FP_CAPABILITY_FLAG_FMA) {
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S << " FMA";
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}
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if (Val & OL_DEVICE_FP_CAPABILITY_FLAG_SOFT_FLOAT) {
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S << " SOFT_FLOAT";
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}
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S << " }";
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}
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template <typename T>
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ol_result_t printPlatformValue(std::ostream &S, ol_platform_handle_t Plat,
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ol_platform_info_t Info, const char *Desc) {
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S << Desc << ": ";
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if constexpr (std::is_pointer_v<T>) {
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std::vector<uint8_t> Val;
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size_t Size;
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OFFLOAD_ERR(olGetPlatformInfoSize(Plat, Info, &Size));
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Val.resize(Size);
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OFFLOAD_ERR(olGetPlatformInfo(Plat, Info, sizeof(Val), Val.data()));
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doWrite(S, reinterpret_cast<T>(Val.data()));
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} else {
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T Val;
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OFFLOAD_ERR(olGetPlatformInfo(Plat, Info, sizeof(Val), &Val));
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doWrite(S, std::move(Val));
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}
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S << "\n";
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return OL_SUCCESS;
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}
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template <typename T, PrintKind PK = PrintKind::NORMAL>
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ol_result_t printDeviceValue(std::ostream &S, ol_device_handle_t Dev,
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ol_device_info_t Info, const char *Desc,
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const char *Units = nullptr) {
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S << Desc << ": ";
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if constexpr (std::is_pointer_v<T>) {
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std::vector<uint8_t> Val;
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size_t Size;
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OFFLOAD_ERR(olGetDeviceInfoSize(Dev, Info, &Size));
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Val.resize(Size);
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OFFLOAD_ERR(olGetDeviceInfo(Dev, Info, Size, Val.data()));
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doWrite<T, PK>(S, reinterpret_cast<T>(Val.data()));
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} else {
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T Val;
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OFFLOAD_ERR(olGetDeviceInfo(Dev, Info, sizeof(Val), &Val));
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doWrite<T, PK>(S, std::move(Val));
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}
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if (Units)
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S << " " << Units;
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S << "\n";
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return OL_SUCCESS;
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}
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ol_result_t printDevice(std::ostream &S, ol_device_handle_t D) {
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ol_platform_handle_t Platform;
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OFFLOAD_ERR(
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olGetDeviceInfo(D, OL_DEVICE_INFO_PLATFORM, sizeof(Platform), &Platform));
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std::vector<char> Name;
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size_t NameSize;
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OFFLOAD_ERR(olGetDeviceInfoSize(D, OL_DEVICE_INFO_PRODUCT_NAME, &NameSize))
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Name.resize(NameSize);
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OFFLOAD_ERR(
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olGetDeviceInfo(D, OL_DEVICE_INFO_PRODUCT_NAME, NameSize, Name.data()));
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S << "[" << Name.data() << "]\n";
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OFFLOAD_ERR(printPlatformValue<const char *>(
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S, Platform, OL_PLATFORM_INFO_NAME, "Platform Name"));
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OFFLOAD_ERR(printPlatformValue<const char *>(
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S, Platform, OL_PLATFORM_INFO_VENDOR_NAME, "Platform Vendor Name"));
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OFFLOAD_ERR(printPlatformValue<const char *>(
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S, Platform, OL_PLATFORM_INFO_VERSION, "Platform Version"));
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OFFLOAD_ERR(printPlatformValue<ol_platform_backend_t>(
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S, Platform, OL_PLATFORM_INFO_BACKEND, "Platform Backend"));
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OFFLOAD_ERR(
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printDeviceValue<const char *>(S, D, OL_DEVICE_INFO_NAME, "Name"));
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OFFLOAD_ERR(printDeviceValue<const char *>(S, D, OL_DEVICE_INFO_PRODUCT_NAME,
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"Product Name"));
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OFFLOAD_ERR(printDeviceValue<const char *>(S, D, OL_DEVICE_INFO_UID, "UID"));
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OFFLOAD_ERR(
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printDeviceValue<ol_device_type_t>(S, D, OL_DEVICE_INFO_TYPE, "Type"));
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OFFLOAD_ERR(printDeviceValue<const char *>(
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S, D, OL_DEVICE_INFO_DRIVER_VERSION, "Driver Version"));
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OFFLOAD_ERR(printDeviceValue<uint32_t>(
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S, D, OL_DEVICE_INFO_MAX_WORK_GROUP_SIZE, "Max Work Group Size"));
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OFFLOAD_ERR(printDeviceValue<ol_dimensions_t>(
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S, D, OL_DEVICE_INFO_MAX_WORK_GROUP_SIZE_PER_DIMENSION,
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"Max Work Group Size Per Dimension"));
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OFFLOAD_ERR(printDeviceValue<uint32_t>(S, D, OL_DEVICE_INFO_MAX_WORK_SIZE,
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"Max Work Size"));
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OFFLOAD_ERR(printDeviceValue<ol_dimensions_t>(
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S, D, OL_DEVICE_INFO_MAX_WORK_SIZE_PER_DIMENSION,
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"Max Work Size Per Dimension"));
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OFFLOAD_ERR(
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printDeviceValue<uint32_t>(S, D, OL_DEVICE_INFO_VENDOR_ID, "Vendor ID"));
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OFFLOAD_ERR(printDeviceValue<uint32_t>(S, D, OL_DEVICE_INFO_NUM_COMPUTE_UNITS,
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"Num Compute Units"));
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OFFLOAD_ERR(printDeviceValue<uint32_t>(
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S, D, OL_DEVICE_INFO_MAX_CLOCK_FREQUENCY, "Max Clock Frequency", "MHz"));
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OFFLOAD_ERR(printDeviceValue<uint32_t>(S, D, OL_DEVICE_INFO_MEMORY_CLOCK_RATE,
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"Memory Clock Rate", "MHz"));
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OFFLOAD_ERR(printDeviceValue<uint32_t>(S, D, OL_DEVICE_INFO_ADDRESS_BITS,
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"Address Bits"));
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OFFLOAD_ERR(printDeviceValue<uint64_t>(
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S, D, OL_DEVICE_INFO_MAX_MEM_ALLOC_SIZE, "Max Mem Allocation Size", "B"));
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OFFLOAD_ERR(printDeviceValue<uint64_t>(S, D, OL_DEVICE_INFO_GLOBAL_MEM_SIZE,
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"Global Mem Size", "B"));
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OFFLOAD_ERR(
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(printDeviceValue<ol_device_fp_capability_flags_t, PrintKind::FP_FLAGS>(
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S, D, OL_DEVICE_INFO_SINGLE_FP_CONFIG,
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"Single Precision Floating Point Capability")));
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OFFLOAD_ERR(
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(printDeviceValue<ol_device_fp_capability_flags_t, PrintKind::FP_FLAGS>(
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S, D, OL_DEVICE_INFO_DOUBLE_FP_CONFIG,
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"Double Precision Floating Point Capability")));
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OFFLOAD_ERR(
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(printDeviceValue<ol_device_fp_capability_flags_t, PrintKind::FP_FLAGS>(
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S, D, OL_DEVICE_INFO_HALF_FP_CONFIG,
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"Half Precision Floating Point Capability")));
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OFFLOAD_ERR(
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printDeviceValue<uint32_t>(S, D, OL_DEVICE_INFO_NATIVE_VECTOR_WIDTH_CHAR,
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"Native Vector Width For Char"));
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OFFLOAD_ERR(
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printDeviceValue<uint32_t>(S, D, OL_DEVICE_INFO_NATIVE_VECTOR_WIDTH_SHORT,
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"Native Vector Width For Short"));
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OFFLOAD_ERR(printDeviceValue<uint32_t>(S, D,
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OL_DEVICE_INFO_NATIVE_VECTOR_WIDTH_INT,
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"Native Vector Width For Int"));
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OFFLOAD_ERR(
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printDeviceValue<uint32_t>(S, D, OL_DEVICE_INFO_NATIVE_VECTOR_WIDTH_LONG,
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"Native Vector Width For Long"));
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OFFLOAD_ERR(
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printDeviceValue<uint32_t>(S, D, OL_DEVICE_INFO_NATIVE_VECTOR_WIDTH_FLOAT,
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"Native Vector Width For Float"));
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OFFLOAD_ERR(printDeviceValue<uint32_t>(
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S, D, OL_DEVICE_INFO_NATIVE_VECTOR_WIDTH_DOUBLE,
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"Native Vector Width For Double"));
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OFFLOAD_ERR(
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printDeviceValue<uint32_t>(S, D, OL_DEVICE_INFO_NATIVE_VECTOR_WIDTH_HALF,
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"Native Vector Width For Half"));
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return OL_SUCCESS;
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}
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ol_result_t printRoot(std::ostream &S) {
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OFFLOAD_ERR(olInit());
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S << "Liboffload Version: " << OL_VERSION_MAJOR << "." << OL_VERSION_MINOR
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<< "." << OL_VERSION_PATCH << "\n";
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std::vector<ol_device_handle_t> Devices;
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OFFLOAD_ERR(olIterateDevices(
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[](ol_device_handle_t Device, void *UserData) {
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reinterpret_cast<decltype(Devices) *>(UserData)->push_back(Device);
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return true;
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},
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&Devices));
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S << "Num Devices: " << Devices.size() << "\n";
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for (auto &D : Devices) {
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S << "\n";
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OFFLOAD_ERR(printDevice(S, D));
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}
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OFFLOAD_ERR(olShutDown());
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return OL_SUCCESS;
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}
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int main(int argc, char **argv) {
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auto Err = printRoot(std::cout);
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if (Err) {
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std::cerr << "[Liboffload error " << Err->Code << "]: " << Err->Details
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<< "\n";
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return 1;
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}
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return 0;
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}
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