20 lines
609 B
Plaintext
20 lines
609 B
Plaintext
#pragma once
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#include <cuda_runtime.h>
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#include <stdint.h>
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namespace oprt::reduce_sum::nvidia {
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__global__ void reduce_sum_rowwise_kernel(float *out, const float *in, int64_t rows, int64_t cols) {
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// TODO: implement a row-wise reduce_sum kernel with shared memory.
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//
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// Suggested steps:
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// 1. Use one block per row.
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// 2. Let each thread accumulate a partial sum over the row.
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// 3. Store the partial sums in shared memory.
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// 4. Reduce shared memory with a tree reduction.
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// 5. Let thread 0 write the final row sum to out[row].
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}
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} // namespace oprt::reduce_sum::nvidia
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