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Commit b98859ec authored by Peter Eastman's avatar Peter Eastman
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Minor speed optimization to neighbor list building

parent 66255407
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Showing with 4 additions and 4 deletions
platforms/cuda/src/kernels/kFindInteractingBlocks.h
View file @ b98859ec
...@@ -61,9 +61,9 @@ __global__ void METHOD_NAME(kFindBlockBounds, _kernel)() ...@@ -61,9 +61,9 @@ __global__ void METHOD_NAME(kFindBlockBounds, _kernel)()
{ {
apos = cSim.pPosq[base+i]; apos = cSim.pPosq[base+i];
#ifdef USE_PERIODIC #ifdef USE_PERIODIC
apos.x -= floor((apos.x-firstPoint.x)/cSim.periodicBoxSizeX+0.5)*cSim.periodicBoxSizeX; apos.x -= floor((apos.x-firstPoint.x)/cSim.periodicBoxSizeX+0.5f)*cSim.periodicBoxSizeX;
apos.y -= floor((apos.y-firstPoint.y)/cSim.periodicBoxSizeY+0.5)*cSim.periodicBoxSizeY; apos.y -= floor((apos.y-firstPoint.y)/cSim.periodicBoxSizeY+0.5f)*cSim.periodicBoxSizeY;
apos.z -= floor((apos.z-firstPoint.z)/cSim.periodicBoxSizeZ+0.5)*cSim.periodicBoxSizeZ; apos.z -= floor((apos.z-firstPoint.z)/cSim.periodicBoxSizeZ+0.5f)*cSim.periodicBoxSizeZ;
#endif #endif
minx = min(minx, apos.x); minx = min(minx, apos.x);
maxx = max(maxx, apos.x); maxx = max(maxx, apos.x);
...@@ -87,7 +87,7 @@ __global__ void METHOD_NAME(kFindBlocksWithInteractions, _kernel)() ...@@ -87,7 +87,7 @@ __global__ void METHOD_NAME(kFindBlocksWithInteractions, _kernel)()
if (pos < cSim.workUnits) if (pos < cSim.workUnits)
{ {
// Extract cell coordinates from appropriate work unit // Extract cell coordinates from appropriate work unit
unsigned int x = cSim.pWorkUnit[pos]; unsigned int x = cSim.pWorkUnit[pos];
unsigned int y = ((x >> 2) & 0x7fff); unsigned int y = ((x >> 2) & 0x7fff);
x = (x >> 17); x = (x >> 17);
......
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