ports/openmpi
ports/openmpi
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ompi_mpi_params.c: set mpi_add_procs_cutoff default to 0

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Decrease the default value of the "mpi_add_procs_cutoff" MCA param
from 1024 to 0.
Этот коммит содержится в:
Jeff Squyres 2016-02-03 18:47:51 -08:00
родитель 6eac6a8b00
Коммит 902b477aac
1 изменённых файлов: 7 добавлений и 5 удалений
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12
ompi/runtime/ompi_mpi_params.c
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@ -10,7 +10,7 @@
* University of Stuttgart. All rights reserved. * University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California. * Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved. * All rights reserved.
* Copyright (c) 2006-2015 Cisco Systems, Inc. All rights reserved. * Copyright (c) 2006-2016 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2007-2015 Los Alamos National Security, LLC. All rights * Copyright (c) 2007-2015 Los Alamos National Security, LLC. All rights
* reserved. * reserved.
* Copyright (c) 2013 NVIDIA Corporation. All rights reserved. * Copyright (c) 2013 NVIDIA Corporation. All rights reserved.
@ -64,7 +64,9 @@ int ompi_mpi_event_tick_rate = -1;
char *ompi_mpi_show_mca_params_string = NULL; char *ompi_mpi_show_mca_params_string = NULL;
bool ompi_mpi_have_sparse_group_storage = !!(OMPI_GROUP_SPARSE); bool ompi_mpi_have_sparse_group_storage = !!(OMPI_GROUP_SPARSE);
bool ompi_mpi_preconnect_mpi = false; bool ompi_mpi_preconnect_mpi = false;
uint32_t ompi_add_procs_cutoff = 1024;
#define OMPI_ADD_PROCS_CUTOFF_DEFAULT 0
uint32_t ompi_add_procs_cutoff = OMPI_ADD_PROCS_CUTOFF_DEFAULT;
bool ompi_mpi_dynamics_enabled = true; bool ompi_mpi_dynamics_enabled = true;
static bool show_default_mca_params = false; static bool show_default_mca_params = false;
@ -263,12 +265,12 @@ int ompi_mpi_register_params(void)
ompi_rte_abort(1, NULL); ompi_rte_abort(1, NULL);
} }
ompi_add_procs_cutoff = 1024; ompi_add_procs_cutoff = OMPI_ADD_PROCS_CUTOFF_DEFAULT;
(void) mca_base_var_register ("ompi", "mpi", NULL, "add_procs_cutoff", (void) mca_base_var_register ("ompi", "mpi", NULL, "add_procs_cutoff",
"Maximum world size for pre-allocating resources for all " "Maximum world size for pre-allocating resources for all "
"remote processes. Increasing this limit may improve " "remote processes. Increasing this limit may improve "
"communication performance at the cost of memory usage " "communication performance at the cost of memory usage",
"(default: 1024)", MCA_BASE_VAR_TYPE_UNSIGNED_INT, NULL, MCA_BASE_VAR_TYPE_UNSIGNED_INT, NULL,
0, 0, OPAL_INFO_LVL_3, MCA_BASE_VAR_SCOPE_LOCAL, 0, 0, OPAL_INFO_LVL_3, MCA_BASE_VAR_SCOPE_LOCAL,
&ompi_add_procs_cutoff); &ompi_add_procs_cutoff);