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Fix compiler warning in knn.ku

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Summary: This change updates the type of p2_idx from size_t to int64_t to address compiler warnings related to signed/unsigned comparison.

Reviewed By: bottler

Differential Revision: D52879393

fbshipit-source-id: de5484d78a907fccdaae3ce036b5e4a1a0a4de70
This commit is contained in:
Dimitris Prountzos 2024-01-18 12:27:16 -08:00 committed by Facebook GitHub Bot
parent 799c1cd21b
commit 1e817914b3
1 changed files with 1 additions and 1 deletions
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pytorch3d/csrc/knn/knn.cu
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@ -495,7 +495,7 @@ __global__ void KNearestNeighborBackwardKernel(
if ((p1_idx < num1) && (k < num2)) {
const float grad_dist = grad_dists[n * P1 * K + p1_idx * K + k];
// index of point in p2 corresponding to the k-th nearest neighbor
const size_t p2_idx = idxs[n * P1 * K + p1_idx * K + k];
const int64_t p2_idx = idxs[n * P1 * K + p1_idx * K + k];
// If the index is the pad value of -1 then ignore it
if (p2_idx == -1) {
continue;