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// BSD 3-Clause License; see https://github.com/scikit-hep/awkward-1.0/blob/main/LICENSE
#define FILENAME(line) \
FILENAME_FOR_EXCEPTIONS_CUDA("src/cuda-kernels/awkward_reduce_argmin.cu", \
line)
#include "standard_parallel_algorithms.h"
#include "awkward/kernels.h"
__global__ void
awkward_reduce_argmin_bool_64_kernel(int64_t* toptr,
const bool* fromptr,
const int64_t* parents,
int64_t lenparents) {
int64_t thread_id = blockIdx.x * blockDim.x + threadIdx.x;
if (thread_id < lenparents) {
int64_t parent = parents[thread_id];
if (toptr[parent] == -1 ||
(fromptr[thread_id] != 0) < (fromptr[toptr[parent]] != 0)) {
toptr[parent] = thread_id;
}
}
}
ERROR
awkward_reduce_argmin_bool_64(int64_t* toptr,
const bool* fromptr,
const int64_t* parents,
int64_t lenparents,
int64_t outlength) {
HANDLE_ERROR(cudaMemset(toptr, -1, sizeof(int64_t) * outlength));
dim3 blocks_per_grid = blocks(lenparents);
dim3 threads_per_block = threads(lenparents);
awkward_reduce_argmin_bool_64_kernel<<<blocks_per_grid, threads_per_block>>>(
toptr, fromptr, parents, lenparents);
return success();
}
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