Optimized number of work groups

5ed1d277 · Peter Eastman · 82f9a867 · 5ed1d277
Commit 5ed1d277 authored Sep 23, 2011 by Peter Eastman
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platforms/opencl/src/OpenCLNonbondedUtilities.cpp platforms/opencl/src/OpenCLNonbondedUtilities.cpp +1 -1

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--- a/platforms/opencl/src/OpenCLNonbondedUtilities.cpp
+++ b/platforms/opencl/src/OpenCLNonbondedUtilities.cpp
@@ -49,7 +49,7 @@ OpenCLNonbondedUtilities::OpenCLNonbondedUtilities(OpenCLContext& context) : con
    }
    else if (context.getSIMDWidth() == 32) {
        if (context.getSupports64BitGlobalAtomics()) {
-            numForceThreadBlocks = 4*context.getDevice().getInfo<CL_DEVICE_MAX_COMPUTE_UNITS>();
+            numForceThreadBlocks = 2*context.getDevice().getInfo<CL_DEVICE_MAX_COMPUTE_UNITS>();
            forceThreadBlockSize = 256;
            numForceBuffers = 2;
        }