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authorAdrian Kummerlaender2019-10-28 23:07:44 +0100
committerAdrian Kummerlaender2019-10-28 23:08:39 +0100
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Basic 2D LDC using boltzgen for kernel generation
Using cell lists as parameters for multiple non-branching kernels seems to reduce performance by ~50 MLUPS (for single precision D2Q9). This might be alleviated by padding the cell lists to enable thread layout control or by improved kernel dispatching. On the upside this OpenCL program runs not only on GPUs but is also vectorized on Intel CPUs yielding about 180 MLUPS (single precision) and - anticlimactically - 85 MLUPS for double precision on a i7-4790K. However both these values compare well to the performance of established CPU LBM codes.
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