Bug fix

39fd6eb6 · Peter Eastman · fee019b0 · 39fd6eb6
Commit 39fd6eb6 authored Apr 22, 2010 by Peter Eastman
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platforms/cuda/src/kernels/kLangevinUpdate.h platforms/cuda/src/kernels/kLangevinUpdate.h +1 -1

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--- a/platforms/cuda/src/kernels/kLangevinUpdate.h
+++ b/platforms/cuda/src/kernels/kLangevinUpdate.h
@@ -143,7 +143,7 @@ void kLangevinUpdatePart2_kernel()
        CM.z                   += mass * velocity.z;
 #endif

-        float4 xPrime = make_float4(dt*velocity.x, dt*velocity.y, dt*velocity.z, 0);
+        float4 xPrime = make_float4(dt*velocity.x, dt*velocity.y, dt*velocity.z, cSim.pPosq[pos].w);

        cSim.pPosq[pos]         = xPrime;
        pos                    += blockDim.x * gridDim.x;