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openmpi/ompi/mca/btl/openib/btl_openib_mca.c
Jeff Squyres 50bae9c603 Bring in the modular-wireup stuff for the openib BTL (from
/tmp/jms-modular-wireup branch):

 * This commit moves all the openib BTL connection code out of
   btl_openib_endpoint.c and into a connect "pseudo-component" area,
   meaning that different schemes for doing OFA connection schemes can
   be chosen via function pointer (i.e., MCA parameter) at run-time.
 * The connect/connect.h file includes comments describing the
   specific interface for the connect pseudo-component.
 * Two pseudo-components are in this commit (more can certainly be
   added).
   * oob: use the same old oob/rml scheme for creating OFA connections
     that we've had forever; this now just puts the logic into this
     self-contained pseudo-component.
   * rdma_cm: a currently-empty set of functions (that currently
     return NOT_IMPLEMENTED) that will someday use the RDMA connection
     manager to make OFA connections.

This commit was SVN r15786.
2007-08-06 23:40:35 +00:00

628 строки
25 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2006-2007 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2006-2007 Mellanox Technologies. All rights reserved.
* Copyright (c) 2006-2007 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <string.h>
#include "opal/mca/installdirs/installdirs.h"
#include "opal/util/output.h"
#include "opal/util/argv.h"
#include "opal/util/show_help.h"
#include "opal/mca/base/mca_base_param.h"
#include "btl_openib.h"
#include "btl_openib_mca.h"
#include "connect/base.h"
/*
* Local flags
*/
enum {
REGINT_NEG_ONE_OK = 0x01,
REGINT_GE_ZERO = 0x02,
REGINT_GE_ONE = 0x04,
REGINT_NONZERO = 0x08,
REGINT_MAX = 0x88
};
enum {
REGSTR_EMPTY_OK = 0x01,
REGSTR_MAX = 0x88
};
static int mca_btl_openib_mca_setup_qps(void);
/*
* utility routine for string parameter registration
*/
static inline int reg_string(const char* param_name, const char* param_desc,
const char* default_value, char **out_value,
int flags)
{
char *value;
mca_base_param_reg_string(&mca_btl_openib_component.super.btl_version,
param_name, param_desc, false, false,
default_value, &value);
if (0 != (flags & REGSTR_EMPTY_OK) && 0 == strlen(value)) {
return OMPI_ERR_BAD_PARAM;
}
*out_value = value;
return OMPI_SUCCESS;
}
/*
* utility routine for integer parameter registration
*/
static inline int reg_int(const char* param_name, const char* param_desc,
int default_value, int *out_value, int flags)
{
int value;
mca_base_param_reg_int(&mca_btl_openib_component.super.btl_version,
param_name, param_desc, false, false,
default_value, &value);
if (0 != (flags & REGINT_NEG_ONE_OK) && -1 == value) {
*out_value = value;
return OMPI_SUCCESS;
}
if ((0 != (flags & REGINT_GE_ZERO) && value < 0) ||
(0 != (flags & REGINT_GE_ONE) && value < 1) ||
(0 != (flags & REGINT_NONZERO) && 0 == value)) {
return OMPI_ERR_BAD_PARAM;
}
*out_value = value;
return OMPI_SUCCESS;
}
/*
* Register and check all MCA parameters
*/
int btl_openib_register_mca_params(void)
{
char *msg, *str;
int ival, ival2, ret, tmp;
ret = OMPI_SUCCESS;
#define CHECK(expr) \
tmp = (expr); \
if (OMPI_SUCCESS != tmp) ret = tmp;
/* register IB component parameters */
CHECK(reg_int("verbose",
"Output some verbose OpenIB BTL information "
"(0 = no output, nonzero = output)", 0, &ival, 0));
mca_btl_openib_component.verbose = (0 != ival);
CHECK(reg_int("warn_no_hca_params_found",
"Warn when no HCA-specific parameters are found in the INI file specified by the btl_openib_hca_param_files MCA parameter (0 = do not warn; any other value = warn)",
1, &ival, 0));
mca_btl_openib_component.warn_no_hca_params_found = (0 != ival);
CHECK(reg_int("warn_default_gid_prefix",
"Warn when there is more than one active ports and at least one of them connected to the network with only default GID prefix configured (0 = do not warn; any other value = warn)",
1, &ival, 0));
mca_btl_openib_component.warn_default_gid_prefix = (0 != ival);
CHECK(reg_int("warn_nonexistent_if",
"Warn if non-existent HCAs and/or ports are specified in the btl_openib_if_[in|ex]clude MCA parameters (0 = do not warn; any other value = warn)",
1, &ival, 0));
mca_btl_openib_component.warn_nonexistent_if = (0 != ival);
#ifdef HAVE_IBV_FORK_INIT
ival2 = -1;
#else
ival2 = 0;
#endif
CHECK(reg_int("want_fork_support",
"Whether fork support is desired or not "
"(negative = try to enable fork support, but continue even if it is not available, 0 = do not enable fork support, positive = try to enable fork support and fail if it is not available)",
ival2, &ival, 0));
#ifdef HAVE_IBV_FORK_INIT
mca_btl_openib_component.want_fork_support = ival;
#else
if (0 != ival) {
opal_show_help("help-mpi-btl-openib.txt",
"ibv_fork requested but not supported", true,
orte_system_info.nodename);
return OMPI_ERROR;
}
#endif
asprintf(&str, "%s/mca-btl-openib-hca-params.ini",
opal_install_dirs.pkgdatadir);
if (NULL == str) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
#ifdef HAVE_IBV_FORK_INIT
ival2 = -1;
#else
ival2 = 0;
#endif
CHECK(reg_int("want_fork_support",
"Whether fork support is desired or not "
"(negative = try to enable fork support, but continue even if it is not available, 0 = do not enable fork support, positive = try to enable fork support and fail if it is not available)",
ival2, &ival, 0));
#ifdef HAVE_IBV_FORK_INIT
mca_btl_openib_component.want_fork_support = ival;
#else
if (0 != ival) {
opal_show_help("help-mpi-btl-openib.txt",
"ibv_fork requested but not supported", true,
orte_system_info.nodename);
return OMPI_ERROR;
}
#endif
CHECK(reg_string("hca_param_files",
"Colon-delimited list of INI-style files that contain HCA vendor/part-specific parameters",
str, &mca_btl_openib_component.hca_params_file_names, 0));
free(str);
CHECK(reg_int("max_btls",
"Maximum number of HCA ports to use "
"(-1 = use all available, otherwise must be >= 1)",
-1, &mca_btl_openib_component.ib_max_btls,
REGINT_NEG_ONE_OK | REGINT_GE_ONE));
CHECK(reg_int("free_list_num",
"Intial size of free lists (must be >= 1)",
8, &mca_btl_openib_component.ib_free_list_num,
REGINT_GE_ONE));
CHECK(reg_int("free_list_max",
"Maximum size of free lists "
"(-1 = infinite, otherwise must be >= 0)",
-1, &mca_btl_openib_component.ib_free_list_max,
REGINT_NEG_ONE_OK | REGINT_GE_ONE));
CHECK(reg_int("free_list_inc",
"Increment size of free lists (must be >= 1)",
32, &mca_btl_openib_component.ib_free_list_inc,
REGINT_GE_ONE));
CHECK(reg_string("mpool",
"Name of the memory pool to be used (it is unlikely that you will ever want to change this",
"rdma", &mca_btl_openib_component.ib_mpool_name,
0));
CHECK(reg_int("reg_mru_len",
"Length of the registration cache most recently used list "
"(must be >= 1)",
16, (int*) &mca_btl_openib_component.reg_mru_len,
REGINT_GE_ONE));
CHECK(reg_int("ib_cq_size", "Size of the IB completion "
"queue (will automatically be set to a minimum of "
"(2 * number_of_peers * btl_openib_rd_num))",
1000, &ival, REGINT_GE_ONE));
mca_btl_openib_component.ib_lp_cq_size =
mca_btl_openib_component.ib_hp_cq_size = (uint32_t) ival;
CHECK(reg_int("ib_sg_list_size", "Size of IB segment list "
"(must be >= 1)",
4, &ival, REGINT_GE_ONE));
mca_btl_openib_component.ib_sg_list_size = (uint32_t) ival;
CHECK(reg_int("ib_pkey_ix", "InfiniBand pkey index "
"(must be >= 0)",
0, &ival, REGINT_GE_ZERO));
mca_btl_openib_component.ib_pkey_ix = (uint32_t) ival;
CHECK(reg_int("ib_pkey_val", "InfiniBand pkey value"
"(must be > 0 and < 0xffff)",
0, &ival, REGINT_GE_ZERO));
if (ival > 0xffff) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "invalid value for btl_openib_ib_pkey_val",
"btl_openib_ib_pkey_val ignored");
} else {
mca_btl_openib_component.ib_pkey_val = (uint32_t) ival;
}
CHECK(reg_int("ib_psn", "InfiniBand packet sequence starting number "
"(must be >= 0)",
0, &ival, REGINT_GE_ZERO));
mca_btl_openib_component.ib_psn = (uint32_t) ival;
CHECK(reg_int("ib_qp_ous_rd_atom", "InfiniBand outstanding atomic reads "
"(must be >= 0)",
4, &ival, REGINT_GE_ZERO));
mca_btl_openib_component.ib_qp_ous_rd_atom = (uint32_t) ival;
asprintf(&msg, "IB MTU, in bytes (if not specified in INI files). Valid values are: %d=256 bytes, %d=512 bytes, %d=1024 bytes, %d=2048 bytes, %d=4096 bytes",
IBV_MTU_256,
IBV_MTU_512,
IBV_MTU_1024,
IBV_MTU_2048,
IBV_MTU_4096);
if (NULL == msg) {
/* Don't try to recover from this */
return OMPI_ERR_OUT_OF_RESOURCE;
}
CHECK(reg_int("ib_mtu", msg, IBV_MTU_1024, &ival, 0));
free(msg);
if (ival < IBV_MTU_1024 || ival > IBV_MTU_4096) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "invalid value for btl_openib_ib_mtu",
"btl_openib_ib_mtu reset to 1024");
mca_btl_openib_component.ib_mtu = IBV_MTU_1024;
} else {
mca_btl_openib_component.ib_mtu = (uint32_t) ival;
}
CHECK(reg_int("ib_min_rnr_timer", "InfiniBand minimum "
"\"receiver not ready\" timer, in seconds "
"(must be >= 0 and <= 31)",
5, &ival, 0));
if (ival > 31) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "btl_openib_ib_min_rnr_timer > 31",
"btl_openib_ib_min_rnr_timer reset to 31");
ival = 31;
} else if (ival < 0){
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "btl_openib_ib_min_rnr_timer < 0",
"btl_openib_ib_min_rnr_timer reset to 0");
ival = 0;
}
mca_btl_openib_component.ib_min_rnr_timer = (uint32_t) ival;
CHECK(reg_int("ib_timeout", "InfiniBand transmit timeout, plugged into formula: 4.096 microseconds * (2^btl_openib_ib_timeout)"
"(must be >= 0 and <= 31)",
10, &ival, 0));
if (ival > 31) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "btl_openib_ib_timeout > 31",
"btl_openib_ib_timeout reset to 31");
ival = 31;
} else if (ival < 0) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "btl_openib_ib_timeout < 0",
"btl_openib_ib_timeout reset to 0");
ival = 0;
}
mca_btl_openib_component.ib_timeout = (uint32_t) ival;
CHECK(reg_int("ib_retry_count", "InfiniBand transmit retry count "
"(must be >= 0 and <= 7)",
7, &ival, 0));
if (ival > 7) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "btl_openib_ib_retry_count > 7",
"btl_openib_ib_retry_count reset to 7");
ival = 7;
} else if (ival < 0) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "btl_openib_ib_retry_count < 0",
"btl_openib_ib_retry_count reset to 0");
ival = 0;
}
mca_btl_openib_component.ib_retry_count = (uint32_t) ival;
CHECK(reg_int("ib_rnr_retry", "InfiniBand \"receiver not ready\" "
"retry count "
"(must be >= 0 and <= 7)",
7, &ival, 0));
if (ival > 7) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "btl_openib_ib_rnr_retry > 7",
"btl_openib_ib_rnr_retry reset to 7");
ival = 7;
} else if (ival < 0) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "btl_openib_ib_rnr_retry < 0",
"btl_openib_ib_rnr_retry reset to 0");
ival = 0;
}
mca_btl_openib_component.ib_rnr_retry = (uint32_t) ival;
CHECK(reg_int("ib_max_rdma_dst_ops", "InfiniBand maximum pending RDMA "
"destination operations "
"(must be >= 0)",
4, &ival, REGINT_GE_ZERO));
mca_btl_openib_component.ib_max_rdma_dst_ops = (uint32_t) ival;
CHECK(reg_int("ib_service_level", "InfiniBand service level "
"(must be >= 0 and <= 15)",
0, &ival, 0));
if (ival > 15) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "btl_openib_ib_service_level > 15",
"btl_openib_ib_service_level reset to 15");
ival = 15;
} else if (ival < 0) {
opal_show_help("help-mpi-btl-openib.txt", "invalid mca param value",
true, "btl_openib_ib_service_level < 0",
"btl_openib_ib_service_level reset to 0");
ival = 0;
}
mca_btl_openib_component.ib_service_level = (uint32_t) ival;
CHECK(reg_int("use_eager_rdma", "Use RDMA for eager messages",
1, &ival, 0));
mca_btl_openib_component.use_eager_rdma = (uint32_t) (ival != 0);
#if OMPI_ENABLE_PROGRESS_THREADS == 1
/* Fast rdma path isn't supported by PROGRESS_THREAD */
mca_btl_openib_component.use_eager_rdma = 0;
#endif
CHECK(reg_int("eager_rdma_threshold",
"Use RDMA for short messages after this number of "
"messages are received from a given peer "
"(must be >= 1)",
16, &ival, REGINT_GE_ONE));
mca_btl_openib_component.eager_rdma_threshold = (int32_t) ival;
CHECK(reg_int("max_eager_rdma", "Maximum number of peers allowed to use "
"RDMA for short messages (RDMA is used for all long "
"messages, except if explicitly disabled, such as "
"with the \"dr\" pml) "
"(must be >= 0)",
16, &ival, REGINT_GE_ZERO));
mca_btl_openib_component.max_eager_rdma = (int32_t) ival;
CHECK(reg_int("eager_rdma_num", "Number of RDMA buffers to allocate "
"for small messages"
"(must be >= 1)",
16, &ival, REGINT_GE_ONE));
mca_btl_openib_component.eager_rdma_num = (uint32_t) (ival + 1);
CHECK(reg_int("btls_per_lid", "Number of BTLs to create for each "
"InfiniBand LID "
"(must be >= 1)",
1, &ival, REGINT_GE_ONE));
mca_btl_openib_component.btls_per_lid = (uint32_t) ival;
CHECK(reg_int("max_lmc", "Maximum number of LIDs to use for each HCA port "
"(must be >= 0, where 0 = use all available)",
0, &ival, REGINT_GE_ZERO));
mca_btl_openib_component.max_lmc = (uint32_t) ival;
#if OMPI_HAVE_THREADS
CHECK(reg_int("use_async_event_thread",
"If nonzero, use the thread that will handle InfiniBand asyncihronous events ",
1, &ival, 0));
mca_btl_openib_component.use_async_event_thread = (0 != ival);
#endif
CHECK(reg_int("buffer_alignment",
"Prefered communication buffer alignment, in bytes "
"(must be > 0 and power of two)",
64, &ival, REGINT_GE_ZERO));
if(ival <= 1 || (ival & (ival - 1))) {
opal_show_help("help-mpi-btl-openib.txt", "wrong buffer alignment",
true, ival, orte_system_info.nodename, 64);
mca_btl_openib_component.buffer_alignment = 64;
} else {
mca_btl_openib_component.buffer_alignment = (uint32_t) ival;
}
/* Info only */
mca_base_param_reg_int(&mca_btl_openib_component.super.btl_version,
"have_fork_support",
"Whether the OpenFabrics stack supports applications that invoke the \"fork()\" system call or not (0 = no, 1 = yes). Note that this value does NOT indicate whether the system being run on supports \"fork()\" with OpenFabrics applications or not.",
false, true,
#ifdef HAVE_IBV_FORK_INIT
1,
#else
0,
#endif
NULL);
mca_btl_openib_module.super.btl_exclusivity = MCA_BTL_EXCLUSIVITY_DEFAULT;
mca_btl_openib_module.super.btl_eager_limit = 12 * 1024;
mca_btl_openib_module.super.btl_min_send_size = 32 * 1024;
mca_btl_openib_module.super.btl_max_send_size = 64 * 1024;
mca_btl_openib_module.super.btl_rdma_pipeline_send_length = 1024 * 1024;
mca_btl_openib_module.super.btl_rdma_pipeline_frag_size = 1024 * 1024;
mca_btl_openib_module.super.btl_min_rdma_pipeline_size = 256 * 1024;
mca_btl_openib_module.super.btl_flags = MCA_BTL_FLAGS_RDMA |
MCA_BTL_FLAGS_NEED_ACK | MCA_BTL_FLAGS_NEED_CSUM;
mca_btl_openib_module.super.btl_bandwidth = 800;
mca_btl_openib_module.super.btl_latency = 10;
ret = mca_btl_base_param_register(
&mca_btl_openib_component.super.btl_version,
&mca_btl_openib_module.super);
if(ret != OMPI_SUCCESS)
return ret;
/* setup all the qp stuff */
if((ret = mca_btl_openib_mca_setup_qps()) != MPI_SUCCESS)
return ret;
CHECK(reg_string("if_include",
"Comma-delimited list of HCAs/ports to be used (e.g. \"mthca0,mthca1:2\"; empty value means to use all ports found). Mutually exclusive with btl_openib_if_exclude.",
NULL, &mca_btl_openib_component.if_include,
0));
CHECK(reg_string("if_exclude",
"Comma-delimited list of HCAs/ports to be excluded (empty value means to not exclude any ports). Mutually exclusive with btl_openib_if_include.",
NULL, &mca_btl_openib_component.if_exclude,
0));
return ret;
}
static int32_t atoi_param(char *param, int32_t dflt)
{
if(NULL == param || '\0' == param[0])
return dflt ? dflt : 1;
return atoi(param);
}
static int mca_btl_openib_mca_setup_qps(void) {
/* All the multi-qp stuff.. */
char *str;
char **queues, **params = NULL;
int num_pp_qps = 0, num_srq_qps = 0, qp = 0, ret = OMPI_ERROR;
char *default_qps = "P,128,16,4;S,1024,256,128,32;S,4096,256,128,32;S,65536,256,128,32";
uint32_t max_qp_size, max_size_needed;
reg_string("receive_queues",
"Colon-delimited, coma delimited list of receive queues: P,4096,8,6,4;P,32768,8,6,4",
default_qps, &str, 0);
queues = opal_argv_split(str, ';');
if(opal_argv_count(queues) == 0) {
opal_output(0, "At least one QP has to be specified in"
" btl_openib_receive_queues\n");
return OMPI_ERROR;
}
while(queues[qp] != NULL) {
if(strncmp("P,", queues[qp], 2) == 0) {
num_pp_qps++;
} else if(strncmp("S,", queues[qp], 2) == 0) {
num_srq_qps++;
} else {
opal_output(0, "Unknown QP type \"%s\" is specified in "
"btl_openib_receive_queues. Only 'S' - shared or "
"'P' - point-to-point are supported\n", queues[qp]);
goto error;
}
qp++;
}
mca_btl_openib_component.num_pp_qps = num_pp_qps;
mca_btl_openib_component.num_srq_qps = num_srq_qps;
mca_btl_openib_component.num_qps = num_pp_qps + num_srq_qps;
mca_btl_openib_component.qp_infos = (mca_btl_openib_qp_info_t*)
malloc(sizeof(mca_btl_openib_qp_info_t) *
mca_btl_openib_component.num_qps);
qp = 0;
#define P(N) (((N) > count)?NULL:params[(N)])
while(queues[qp] != NULL) {
uint32_t tmp;
int i = 0, count;
params = opal_argv_split_with_empty(queues[qp], ',');
count = opal_argv_count(params);
if(params[0][0] == 'P') {
if(count < 2 || count > 6) {
opal_output(0, "Wrong QP specification (QP %d \"%s\"). "
"Point-to-point QP get 1-5 parameters\n", qp, queues[qp]);
goto error;
}
mca_btl_openib_component.qp_infos[qp].size = atoi_param(P(1), 0);
mca_btl_openib_component.qp_infos[qp].rd_num = atoi_param(P(2), 8);
tmp = mca_btl_openib_component.qp_infos[qp].rd_num >> 1;
mca_btl_openib_component.qp_infos[qp].rd_low =
atoi_param(P(3), tmp);
tmp = (mca_btl_openib_component.qp_infos[qp].rd_low >> 1);
mca_btl_openib_component.qp_infos[qp].u.pp_qp.rd_win =
atoi_param(P(4), tmp);
tmp = ((mca_btl_openib_component.qp_infos[qp].rd_num << 1) - 1)/
mca_btl_openib_component.qp_infos[qp].u.pp_qp.rd_win;
mca_btl_openib_component.qp_infos[qp].u.pp_qp.rd_rsv =
atoi_param(P(5), tmp);
opal_output(mca_btl_base_output, "pp: rd_num is %d\trd_low is %d\trd_win %d\trd_rsv %d \n",
mca_btl_openib_component.qp_infos[qp].rd_num,
mca_btl_openib_component.qp_infos[qp].rd_low,
mca_btl_openib_component.qp_infos[qp].u.pp_qp.rd_win,
mca_btl_openib_component.qp_infos[qp].u.pp_qp.rd_rsv
);
mca_btl_openib_component.qp_infos[qp].type = MCA_BTL_OPENIB_PP_QP;
} else if(params[0][0] =='S') {
if(count < 2 || count > 5) {
opal_output(0, "Wrong QP specification (QP %d \"%s\"). "
"Shared QP get 1-4 parameters\n", qp, queues[qp]);
goto error;
}
mca_btl_openib_component.qp_infos[qp].size = atoi_param(P(1), 0);
mca_btl_openib_component.qp_infos[qp].rd_num = atoi_param(P(2), 16);
tmp = mca_btl_openib_component.qp_infos[qp].rd_num >> 1;
mca_btl_openib_component.qp_infos[qp].rd_low =
atoi_param(P(3), tmp);
tmp = mca_btl_openib_component.qp_infos[qp].rd_low >> 2;
mca_btl_openib_component.qp_infos[qp].u.srq_qp.sd_max =
atoi_param(P(4), tmp);
opal_output(mca_btl_base_output, "srq: rd_num is %d\trd_low is %d\tsd_max is %d\n",
mca_btl_openib_component.qp_infos[qp].rd_num,
mca_btl_openib_component.qp_infos[qp].rd_low,
mca_btl_openib_component.qp_infos[qp].u.srq_qp.sd_max);
mca_btl_openib_component.qp_infos[qp].type = MCA_BTL_OPENIB_SRQ_QP;
}
if(mca_btl_openib_component.qp_infos[qp].rd_num <=
mca_btl_openib_component.qp_infos[qp].rd_low) {
opal_output(0, "Wrong QP specification (QP %d \"%s\"). "
"rd_num should be bigger than rd_low\n", qp,
queues[qp]);
goto error;
}
while(params[i] != NULL)
free(params[i++]);
free(params);
qp++;
}
params = NULL;
max_qp_size = mca_btl_openib_component.qp_infos[mca_btl_openib_component.num_qps - 1].size;
max_size_needed = (mca_btl_openib_module.super.btl_eager_limit >
mca_btl_openib_module.super.btl_max_send_size) ?
mca_btl_openib_module.super.btl_eager_limit :
mca_btl_openib_module.super.btl_max_send_size;
if(max_qp_size < max_size_needed) {
opal_output(0, "The biggest QP is not big enough. "
"%d bytes configured, but maximum send size may be %d\n",
max_qp_size, max_size_needed);
ret = OMPI_ERROR;
goto error;
} else if(max_qp_size > max_size_needed) {
opal_output(0, "The biggest QP size is bigger than maximum send size. "
"This is not optimal configuration as memory will be waisted.\n");
}
mca_btl_openib_component.rdma_qp = mca_btl_openib_component.num_qps - 1;
mca_btl_openib_component.eager_rdma_qp = 0;
/* Register any MCA params for the connect pseudo-components */
ompi_btl_openib_connect_base_open();
ret = MPI_SUCCESS;
error:
if(params) {
qp = 0;
while(params[qp] != NULL)
free(params[qp++]);
free(params);
}
if(queues) {
qp = 0;
while(queues[qp] != NULL)
free(queues[qp++]);
free(queues);
}
return ret;
}