need to get gflags and reduce gpu memory in unittest #5194
Description
We now have two gflags in memory module, use_pinned_memory and fraction_of_gpu_memory_to_use. But we do not provide a way to set these gflags.
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We now have two gflags in memory module, use_pinned_memory and fraction_of_gpu_memory_to_use. But we do not provide a way to set these gflags.