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#162: Support for multi-device system descriptor, commonize system de…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| add_library(TTRuntimeSysDesc STATIC system_desc.cpp) | ||
| set_property(TARGET TTRuntimeSysDesc PROPERTY CXX_STANDARD 20) | ||
| target_include_directories(TTRuntimeSysDesc | ||
| PUBLIC | ||
| ${PROJECT_SOURCE_DIR}/runtime/include | ||
| ${PROJECT_BINARY_DIR}/include/ttmlir/Target/Common | ||
| ) | ||
| target_include_directories(TTRuntimeSysDesc PUBLIC "$<BUILD_INTERFACE:${TTMETAL_INCLUDE_DIRS}>") | ||
| add_dependencies(TTRuntimeSysDesc tt-metal FBS_GENERATION) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,179 @@ | ||
| // SPDX-FileCopyrightText: (c) 2024 Tenstorrent AI ULC | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| #include "tt/runtime/types.h" | ||
| #include "tt/runtime/utils.h" | ||
| #include "ttmlir/Target/TTNN/Target.h" | ||
| #include "ttmlir/Version.h" | ||
| #include <cstdint> | ||
| #include <vector> | ||
|
|
||
| #pragma clang diagnostic push | ||
| #pragma clang diagnostic ignored "-Wctad-maybe-unsupported" | ||
| #pragma clang diagnostic ignored "-Wcovered-switch-default" | ||
| #pragma clang diagnostic ignored "-Wunused-variable" | ||
| #pragma clang diagnostic ignored "-Wignored-qualifiers" | ||
| #pragma clang diagnostic ignored "-Wgnu-zero-variadic-macro-arguments" | ||
| #pragma clang diagnostic ignored "-Wvla-extension" | ||
| #pragma clang diagnostic ignored "-Wsign-compare" | ||
| #pragma clang diagnostic ignored "-Wcast-qual" | ||
| #pragma clang diagnostic ignored "-Wdeprecated-this-capture" | ||
| #pragma clang diagnostic ignored "-Wnon-virtual-dtor" | ||
| #pragma clang diagnostic ignored "-Wsuggest-override" | ||
| #pragma clang diagnostic ignored "-Wgnu-anonymous-struct" | ||
| #pragma clang diagnostic ignored "-Wnested-anon-types" | ||
| #pragma clang diagnostic ignored "-Wreorder-ctor" | ||
| #pragma clang diagnostic ignored "-Wmismatched-tags" | ||
| #pragma clang diagnostic ignored "-Wunused-function" | ||
| #pragma clang diagnostic ignored "-Wunused-local-typedef" | ||
| #define FMT_HEADER_ONLY | ||
| #include "host_api.hpp" | ||
| #include "hostdevcommon/common_values.hpp" | ||
| #include "impl/device/device_mesh.hpp" | ||
| #pragma clang diagnostic pop | ||
|
|
||
| namespace tt::runtime::system_desc { | ||
| static ::tt::target::Dim2d toFlatbuffer(const CoreCoord &coreCoord) { | ||
| return ::tt::target::Dim2d(coreCoord.y, coreCoord.x); | ||
| } | ||
|
|
||
| static ::tt::target::Arch toFlatbuffer(::tt::ARCH arch) { | ||
| switch (arch) { | ||
| case ::tt::ARCH::GRAYSKULL: | ||
| return ::tt::target::Arch::Grayskull; | ||
| case ::tt::ARCH::WORMHOLE_B0: | ||
| return ::tt::target::Arch::Wormhole_b0; | ||
| case ::tt::ARCH::BLACKHOLE: | ||
| return ::tt::target::Arch::Blackhole; | ||
| default: | ||
| break; | ||
| } | ||
|
|
||
| throw std::runtime_error("Unsupported arch"); | ||
| } | ||
|
|
||
| static std::vector<::tt::target::ChipChannel> | ||
| getAllDeviceConnections(const vector<::tt::tt_metal::Device *> &devices) { | ||
| std::set<std::tuple<chip_id_t, CoreCoord, chip_id_t, CoreCoord>> | ||
| connectionSet; | ||
|
|
||
| auto addConnection = [&connectionSet]( | ||
| chip_id_t deviceId0, CoreCoord ethCoreCoord0, | ||
| chip_id_t deviceId1, CoreCoord ethCoreCoord1) { | ||
| if (deviceId0 > deviceId1) { | ||
| std::swap(deviceId0, deviceId1); | ||
| std::swap(ethCoreCoord0, ethCoreCoord1); | ||
| } | ||
| connectionSet.emplace(deviceId0, ethCoreCoord0, deviceId1, ethCoreCoord1); | ||
| }; | ||
|
|
||
| for (const ::tt::tt_metal::Device *device : devices) { | ||
| std::unordered_set<CoreCoord> activeEthernetCores = | ||
| device->get_active_ethernet_cores(true); | ||
| for (const CoreCoord ðernetCore : activeEthernetCores) { | ||
| std::tuple<chip_id_t, CoreCoord> connectedDevice = | ||
| device->get_connected_ethernet_core(ethernetCore); | ||
| addConnection(device->id(), ethernetCore, std::get<0>(connectedDevice), | ||
| std::get<1>(connectedDevice)); | ||
| } | ||
| } | ||
|
|
||
| std::vector<::tt::target::ChipChannel> allConnections; | ||
| allConnections.resize(connectionSet.size()); | ||
|
|
||
| std::transform( | ||
| connectionSet.begin(), connectionSet.end(), allConnections.begin(), | ||
| [](const std::tuple<chip_id_t, CoreCoord, chip_id_t, CoreCoord> | ||
| &connection) { | ||
| return ::tt::target::ChipChannel( | ||
| std::get<0>(connection), toFlatbuffer(std::get<1>(connection)), | ||
| std::get<2>(connection), toFlatbuffer(std::get<3>(connection))); | ||
| }); | ||
|
|
||
| return allConnections; | ||
| } | ||
|
|
||
| static std::unique_ptr<::tt::runtime::SystemDesc> | ||
| getCurrentSystemDescImpl(const ::tt::tt_metal::DeviceMesh &deviceMesh) { | ||
| std::vector<::tt::tt_metal::Device *> devices = deviceMesh.get_devices(); | ||
| std::sort(devices.begin(), devices.end(), | ||
| [](const ::tt::tt_metal::Device *a, | ||
| const ::tt::tt_metal::Device *b) { return a->id() < b->id(); }); | ||
|
|
||
| std::vector<::flatbuffers::Offset<tt::target::ChipDesc>> chipDescs; | ||
| std::vector<uint32_t> chipDescIndices; | ||
| std::vector<::tt::target::ChipCapability> chipCapabilities; | ||
| // Ignore for now | ||
| std::vector<::tt::target::ChipCoord> chipCoords = { | ||
| ::tt::target::ChipCoord(0, 0, 0, 0)}; | ||
| ::flatbuffers::FlatBufferBuilder fbb; | ||
|
|
||
| for (const ::tt::tt_metal::Device *device : devices) { | ||
| // Construct chip descriptor | ||
| ::tt::target::Dim2d deviceGrid = | ||
| toFlatbuffer(device->compute_with_storage_grid_size()); | ||
| chipDescs.push_back(::tt::target::CreateChipDesc( | ||
| fbb, toFlatbuffer(device->arch()), &deviceGrid, | ||
| device->l1_size_per_core(), device->num_dram_channels(), | ||
| device->dram_size_per_channel(), L1_ALIGNMENT, PCIE_ALIGNMENT, | ||
| DRAM_ALIGNMENT)); | ||
| chipDescIndices.push_back(device->id()); | ||
| // Derive chip capability | ||
| ::tt::target::ChipCapability chipCapability = | ||
| ::tt::target::ChipCapability::NONE; | ||
| if (device->is_mmio_capable()) { | ||
| chipCapability = chipCapability | ::tt::target::ChipCapability::PCIE | | ||
| ::tt::target::ChipCapability::HostMMIO; | ||
| } | ||
| chipCapabilities.push_back(chipCapability); | ||
| } | ||
| // Extract chip connected channels | ||
| std::vector<::tt::target::ChipChannel> allConnections = | ||
| getAllDeviceConnections(devices); | ||
| // Create SystemDesc | ||
| auto systemDesc = ::tt::target::CreateSystemDescDirect( | ||
| fbb, &chipDescs, &chipDescIndices, &chipCapabilities, &chipCoords, | ||
| &allConnections); | ||
| ::ttmlir::Version ttmlirVersion = ::ttmlir::getVersion(); | ||
| ::tt::target::Version version(ttmlirVersion.major, ttmlirVersion.minor, | ||
| ttmlirVersion.patch); | ||
| auto root = ::tt::target::CreateSystemDescRootDirect( | ||
| fbb, &version, ::ttmlir::getGitHash(), "unknown", systemDesc); | ||
| ::tt::target::FinishSizePrefixedSystemDescRootBuffer(fbb, root); | ||
| ::flatbuffers::Verifier verifier(fbb.GetBufferPointer(), fbb.GetSize()); | ||
| if (not ::tt::target::VerifySizePrefixedSystemDescRootBuffer(verifier)) { | ||
| throw std::runtime_error("Failed to verify system desc root buffer"); | ||
| } | ||
| uint8_t *buf = fbb.GetBufferPointer(); | ||
| auto size = fbb.GetSize(); | ||
| auto handle = ::tt::runtime::utils::malloc_shared(size); | ||
| std::memcpy(handle.get(), buf, size); | ||
| return std::make_unique<::tt::runtime::SystemDesc>(handle); | ||
| } | ||
|
|
||
| std::pair<::tt::runtime::SystemDesc, DeviceIds> getCurrentSystemDesc() { | ||
| size_t numDevices = ::tt::tt_metal::GetNumAvailableDevices(); | ||
| size_t numPciDevices = ::tt::tt_metal::GetNumPCIeDevices(); | ||
| TT_FATAL(numDevices % numPciDevices == 0, | ||
| "Unexpected non-rectangular grid of devices"); | ||
| std::vector<chip_id_t> deviceIds(numDevices); | ||
| std::iota(deviceIds.begin(), deviceIds.end(), 0); | ||
| ::tt::tt_metal::DeviceGrid grid = | ||
| std::make_pair(numDevices / numPciDevices, numPciDevices); | ||
| ::tt::tt_metal::DeviceMesh deviceMesh = ::tt::tt_metal::DeviceMesh( | ||
| grid, deviceIds, DEFAULT_L1_SMALL_SIZE, DEFAULT_TRACE_REGION_SIZE, 1); | ||
| std::exception_ptr eptr = nullptr; | ||
| std::unique_ptr<::tt::runtime::SystemDesc> desc; | ||
| try { | ||
| desc = getCurrentSystemDescImpl(deviceMesh); | ||
| } catch (...) { | ||
| eptr = std::current_exception(); | ||
| } | ||
| deviceMesh.close_devices(); | ||
| if (eptr) { | ||
| std::rethrow_exception(eptr); | ||
| } | ||
| return std::make_pair(*desc, deviceIds); | ||
| } | ||
|
|
||
| } // namespace tt::runtime::system_desc |
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