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@@ -597,7 +597,8 @@ parallel CPU implementation of the computation to be achieved. This can also be
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useful to improve the load balance between slow CPUs and fast GPUs: since CPUs
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useful to improve the load balance between slow CPUs and fast GPUs: since CPUs
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work collectively on a single task, the completion time of tasks on CPUs become
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work collectively on a single task, the completion time of tasks on CPUs become
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comparable to the completion time on GPUs, thus relieving from granularity
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comparable to the completion time on GPUs, thus relieving from granularity
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-discrepancy concerns.
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+discrepancy concerns. Hwloc support needs to be enabled to get good performance,
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+otherwise StarPU will not know how to better group cores.
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Two modes of execution exist to accomodate with existing usages.
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Two modes of execution exist to accomodate with existing usages.
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