tuning

This commit was SVN r6595.

ompi/mca/btl/gm/btl_gm_component.c

@@ -147,7 +147,7 @@ int mca_btl_gm_component_open(void)
     mca_btl_gm_module.super.btl_max_send_size =
         mca_btl_gm_param_register_int ("max_send_size", 64*1024);
     mca_btl_gm_module.super.btl_min_rdma_size = 
-        mca_btl_gm_param_register_int("min_rdma_size", 128*1024); 
+        mca_btl_gm_param_register_int("min_rdma_size", 512*1024); 
     mca_btl_gm_module.super.btl_max_rdma_size = 
         mca_btl_gm_param_register_int("max_rdma_size", 128*1024); 
 #if OMPI_MCA_BTL_GM_SUPPORT_REGISTERING && OMPI_MCA_BTL_GM_HAVE_RDMA_PUT