wehub-resource-sync
124 lines
4.5 KiB
Plaintext
124 lines
4.5 KiB
Plaintext
/* ******************************************************************************
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*
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* See the NOTICE file distributed with this work for additional
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* information regarding copyright ownership.
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author Yurii Shyrma (iuriish@yahoo.com), created on 26.04.2019
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//
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#include <ops/declarable/helpers/zeta.h>
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#include "execution/cuda/LaunchDims.h"
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namespace sd {
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namespace ops {
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namespace helpers {
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///////////////////////////////////////////////////////////////////
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template <typename T>
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SD_KERNEL static void zetaCuda(const void *vx, const LongType *xShapeInfo, const void *vq, const LongType *qShapeInfo,
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void *vz, const LongType *zShapeInfo) {
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const auto x = reinterpret_cast<const T *>(vx);
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const auto q = reinterpret_cast<const T *>(vq);
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auto z = reinterpret_cast<T *>(vz);
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__shared__ LongType len;
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__shared__ LongType xRank, qRank, zRank;
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__shared__ LongType *sharedMem;
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__shared__ const LongType *xShape, *qShape, *zShape;
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__shared__ const LongType *xStride, *qStride, *zStride;
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if (threadIdx.x == 0) {
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extern __shared__ unsigned char shmem[];
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sharedMem = reinterpret_cast<LongType*>(shmem);
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len = shape::length(xShapeInfo);
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// Cache ranks
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xRank = shape::rank(xShapeInfo);
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qRank = shape::rank(qShapeInfo);
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zRank = shape::rank(zShapeInfo);
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// Cache shape pointers
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xShape = shape::shapeOf(xShapeInfo);
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qShape = shape::shapeOf(qShapeInfo);
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zShape = shape::shapeOf(zShapeInfo);
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// Cache stride pointers
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xStride = shape::stride(xShapeInfo);
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qStride = shape::stride(qShapeInfo);
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zStride = shape::stride(zShapeInfo);
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}
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__syncthreads();
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const auto tid = blockIdx.x * blockDim.x + threadIdx.x;
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const auto totalThreads = gridDim.x * blockDim.x;
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// Use shared memory for coordinates
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auto coords = sharedMem + threadIdx.x * SD_MAX_RANK;
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for (LongType i = tid; i < len; i += totalThreads) {
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LongType xOffset, qOffset, zOffset;
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INDEX2COORDS(i, xRank, xShape, coords);
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COORDS2INDEX(xRank, xStride, coords, xOffset);
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INDEX2COORDS(i, qRank, qShape, coords);
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COORDS2INDEX(qRank, qStride, coords, qOffset);
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INDEX2COORDS(i, zRank, zShape, coords);
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COORDS2INDEX(zRank, zStride, coords, zOffset);
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z[zOffset] = zetaScalar<T>(x[xOffset], q[qOffset]);
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}
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}
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///////////////////////////////////////////////////////////////////
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template <typename T>
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static void zetaCudaLauncher(const int blocksPerGrid, const int sharedMemory, const int threadsPerBlock,
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const cudaStream_t *stream, const void *vx, const LongType *xShapeInfo, const void *vq,
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const LongType *qShapeInfo, void *vz, const LongType *zShapeInfo) {
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zetaCuda<T>
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<<<blocksPerGrid, threadsPerBlock, sharedMemory, *stream>>>(vx, xShapeInfo, vq, qShapeInfo, vz, zShapeInfo);
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sd::DebugHelper::checkErrorCode(const_cast<cudaStream_t *>(stream), "zetaCuda failed");
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}
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void zeta(LaunchContext *context, NDArray&x, NDArray&q, NDArray &z) {
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if (!x.isActualOnDeviceSide()) x.syncToDevice();
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if (!q.isActualOnDeviceSide()) q.syncToDevice();
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dim3 launchDims = zetaDims(x.lengthOf());
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BUILD_SINGLE_SELECTOR(
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x.dataType(), zetaCudaLauncher,
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(launchDims.x, launchDims.z, launchDims.y, context->getCudaStream(), x.specialBuffer(), x.specialShapeInfo(),
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q.specialBuffer(), q.specialShapeInfo(), z.specialBuffer(), z.specialShapeInfo()),
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SD_FLOAT_TYPES);
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x.tickReadHost();
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q.tickReadHost();
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z.tickWriteDevice();
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}
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BUILD_SINGLE_TEMPLATE( void zetaCudaLauncher,
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(const int blocksPerGrid, const int threadsPerBlock, const int sharedMmemory,
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const cudaStream_t *stream, const void *vx, const sd::LongType *xShapeInfo, const void *vq,
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const sd::LongType *qShapeInfo, void *vz, const sd::LongType *zShapeInfo),
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SD_FLOAT_TYPES);
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} // namespace helpers
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} // namespace ops
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} // namespace sd
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