-
Notifications
You must be signed in to change notification settings - Fork 30
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Added functions for querying reduction atomic support per type per fu…
…nction
- Loading branch information
1 parent
89a10cc
commit fff36a1
Showing
6 changed files
with
245 additions
and
104 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
143 changes: 143 additions & 0 deletions
143
dpctl/tensor/libtensor/source/reductions/reduction_atomic_support.hpp
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| //===-- ------------ Implementation of _tensor_impl module ----*-C++-*-/===// | ||
| // | ||
| // Data Parallel Control (dpctl) | ||
| // | ||
| // Copyright 2020-2023 Intel Corporation | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
| //===--------------------------------------------------------------------===// | ||
| /// | ||
| /// \file | ||
| /// This file defines functions of dpctl.tensor._tensor_impl extensions | ||
| //===--------------------------------------------------------------------===// | ||
|
|
||
| #pragma once | ||
| #include <CL/sycl.hpp> | ||
| #include <complex> | ||
| #include <type_traits> | ||
|
|
||
| #include "utils/type_utils.hpp" | ||
|
|
||
| namespace dpctl | ||
| { | ||
| namespace tensor | ||
| { | ||
| namespace py_internal | ||
| { | ||
| namespace atomic_support | ||
| { | ||
|
|
||
| typedef bool (*atomic_support_fn_ptr_t)(const sycl::queue &, sycl::usm::alloc); | ||
|
|
||
| /*! @brief Function which returns a constant value for atomic support */ | ||
| template <bool return_value> | ||
| bool fixed_decision(const sycl::queue &, sycl::usm::alloc) | ||
| { | ||
| return return_value; | ||
| } | ||
|
|
||
| /*! @brief Template for querying atomic support for a type on a device */ | ||
| template <typename T> | ||
| bool check_atomic_support(const sycl::queue &exec_q, | ||
| sycl::usm::alloc usm_alloc_type) | ||
| { | ||
| constexpr bool atomic32 = (sizeof(T) == 4); | ||
| constexpr bool atomic64 = (sizeof(T) == 8); | ||
| using dpctl::tensor::type_utils::is_complex; | ||
| if constexpr ((!atomic32 && !atomic64) || is_complex<T>::value) { | ||
| return fixed_decision<false>(exec_q, usm_alloc_type); | ||
| } | ||
| else { | ||
| bool supports_atomics = false; | ||
| const sycl::device &dev = exec_q.get_device(); | ||
| if constexpr (atomic64) { | ||
| if (!dev.has(sycl::aspect::atomic64)) { | ||
| return false; | ||
| } | ||
| } | ||
| switch (usm_alloc_type) { | ||
| case sycl::usm::alloc::shared: | ||
| supports_atomics = | ||
| dev.has(sycl::aspect::usm_atomic_shared_allocations); | ||
| break; | ||
| case sycl::usm::alloc::host: | ||
| supports_atomics = | ||
| dev.has(sycl::aspect::usm_atomic_host_allocations); | ||
| break; | ||
| case sycl::usm::alloc::device: | ||
| supports_atomics = true; | ||
| break; | ||
| default: | ||
| supports_atomics = false; | ||
| } | ||
| return supports_atomics; | ||
| } | ||
| } | ||
|
|
||
| template <typename fnT, typename T> struct MaxAtomicSupportFactory | ||
| { | ||
| fnT get() | ||
| { | ||
| if constexpr (std::is_floating_point_v<T>) { | ||
| return fixed_decision<false>; | ||
| } | ||
| else { | ||
| return check_atomic_support<T>; | ||
| } | ||
| } | ||
| }; | ||
|
|
||
| template <typename fnT, typename T> struct MinAtomicSupportFactory | ||
| { | ||
| fnT get() | ||
| { | ||
| if constexpr (std::is_floating_point_v<T>) { | ||
| return fixed_decision<false>; | ||
| } | ||
| else { | ||
| return check_atomic_support<T>; | ||
| } | ||
| } | ||
| }; | ||
|
|
||
| template <typename fnT, typename T> struct SumAtomicSupportFactory | ||
| { | ||
| fnT get() | ||
| { | ||
| if constexpr (std::is_floating_point_v<T>) { | ||
| return fixed_decision<false>; | ||
| } | ||
| else { | ||
| return check_atomic_support<T>; | ||
| } | ||
| } | ||
| }; | ||
|
|
||
| template <typename fnT, typename T> struct ProductAtomicSupportFactory | ||
| { | ||
| fnT get() | ||
| { | ||
| if constexpr (std::is_floating_point_v<T>) { | ||
| return fixed_decision<false>; | ||
| } | ||
| else { | ||
| return check_atomic_support<T>; | ||
| } | ||
| } | ||
| }; | ||
|
|
||
| } // namespace atomic_support | ||
| } // namespace py_internal | ||
| } // namespace tensor | ||
| } // namespace dpctl |
Oops, something went wrong.