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Added debug output to find memory leak

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Martin Bauernfeind 2022-06-26 19:43:10 +02:00
parent 60ed524dd8
commit 16e8b76012
1 changed files with 4 additions and 3 deletions
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7
src/neighbor.cu
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@ -123,7 +123,7 @@ __global__ void compute_neighborhood(Atom a, Neighbor neigh, Neighbor_params np,
neighbor->numneigh[i] = n; neighbor->numneigh[i] = n;
if(n >= neighbor->maxneighs) { if(n > neighbor->maxneighs) {
atomicMax(new_maxneighs, n); atomicMax(new_maxneighs, n);
} }
} }
@ -596,18 +596,19 @@ void buildNeighbor_cuda(Atom *atom, Neighbor *neighbor, Atom *c_atom, Neighbor *
np, nstencil, c_stencil, np, nstencil, c_stencil,
c_bins, atoms_per_bin, c_bincount, c_bins, atoms_per_bin, c_bincount,
c_new_maxneighs, c_new_maxneighs,
cutneighsq); cutneighsq);
// TODO copy the value of c_new_maxneighs back to host and check if it has been modified // TODO copy the value of c_new_maxneighs back to host and check if it has been modified
int new_maxneighs; int new_maxneighs;
checkCUDAError("c_new_maxneighs memcpy back", cudaMemcpy(&new_maxneighs, c_new_maxneighs, sizeof(int), cudaMemcpyDeviceToHost)); checkCUDAError("c_new_maxneighs memcpy back", cudaMemcpy(&new_maxneighs, c_new_maxneighs, sizeof(int), cudaMemcpyDeviceToHost));
if (new_maxneighs > c_neighbor->maxneighs){ if (new_maxneighs >= c_neighbor->maxneighs){
resize = 1; resize = 1;
} }
if(resize) { if(resize) {
printf("RESIZE %d\n", c_neighbor->maxneighs); printf("RESIZE %d\n", c_neighbor->maxneighs);
c_neighbor->maxneighs = new_maxneighs * 1.2; c_neighbor->maxneighs = new_maxneighs * 1.2;
printf("NEW SIZE %d\n", c_neighbor->maxneighs);
cudaFree(c_neighbor->neighbors); cudaFree(c_neighbor->neighbors);
checkCUDAError("c_neighbor->neighbors resize malloc", checkCUDAError("c_neighbor->neighbors resize malloc",
cudaMalloc((void**)(&c_neighbor->neighbors), cudaMalloc((void**)(&c_neighbor->neighbors),