From c47e06463dab2bca5ae0b5f64e631d4fc3a0995e Mon Sep 17 00:00:00 2001 From: Rolf vandeVaart Date: Mon, 30 Dec 2013 18:39:11 +0000 Subject: [PATCH] Adjust CUDA related crossover value. This commit was SVN r30100. --- ompi/mca/btl/openib/btl_openib_mca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ompi/mca/btl/openib/btl_openib_mca.c b/ompi/mca/btl/openib/btl_openib_mca.c index 94bcf44a02..469f8031a3 100644 --- a/ompi/mca/btl/openib/btl_openib_mca.c +++ b/ompi/mca/btl/openib/btl_openib_mca.c @@ -627,7 +627,7 @@ int btl_openib_register_mca_params(void) if (mca_btl_openib_component.cuda_want_gdr) { mca_btl_openib_module.super.btl_flags |= MCA_BTL_FLAGS_CUDA_GET; mca_btl_openib_module.super.btl_cuda_eager_limit = SIZE_MAX; /* magic number - indicates set it to minimum */ - mca_btl_openib_module.super.btl_cuda_rdma_limit = 1024 * 20; /* default switchover is 20K to pipeline */ + mca_btl_openib_module.super.btl_cuda_rdma_limit = 30000; /* default switchover is 30,000 to pipeline */ } else { mca_btl_openib_module.super.btl_cuda_eager_limit = 0; /* Turns off any of the GPU Direct RDMA code */ mca_btl_openib_module.super.btl_cuda_rdma_limit = 0; /* Unused */