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openmpi/ompi/mca/btl/mx/btl_mx_component.c
Nathan Hjelm cf377db823 MCA/base: Add new MCA variable system 
Features:
 - Support for an override parameter file (openmpi-mca-param-override.conf).
   Variable values in this file can not be overridden by any file or environment
   value.
 - Support for boolean, unsigned, and unsigned long long variables.
 - Support for true/false values.
 - Support for enumerations on integer variables.
 - Support for MPIT scope, verbosity, and binding.
 - Support for command line source.
 - Support for setting variable source via the environment using
   OMPI_MCA_SOURCE_<var name>=source (either command or file:filename)
 - Cleaner API.
 - Support for variable groups (equivalent to MPIT categories).

Notes:
 - Variables must be created with a backing store (char **, int *, or bool *)
   that must live at least as long as the variable.
 - Creating a variable with the MCA_BASE_VAR_FLAG_SETTABLE enables the use of
   mca_base_var_set_value() to change the value.
 - String values are duplicated when the variable is registered. It is up to
   the caller to free the original value if necessary. The new value will be
   freed by the mca_base_var system and must not be freed by the user.
 - Variables with constant scope may not be settable.
 - Variable groups (and all associated variables) are deregistered when the
   component is closed or the component repository item is freed. This
   prevents a segmentation fault from accessing a variable after its component
   is unloaded.
 - After some discussion we decided we should remove the automatic registration
   of component priority variables. Few component actually made use of this
   feature.
 - The enumerator interface was updated to be general enough to handle
   future uses of the interface.
 - The code to generate ompi_info output has been moved into the MCA variable
   system. See mca_base_var_dump().

opal: update core and components to mca_base_var system
orte: update core and components to mca_base_var system
ompi: update core and components to mca_base_var system

This commit also modifies the rmaps framework. The following variables were
moved from ppr and lama: rmaps_base_pernode, rmaps_base_n_pernode,
rmaps_base_n_persocket. Both lama and ppr create synonyms for these variables.

This commit was SVN r28236.
2013-03-27 21:09:41 +00:00

765 строки
33 KiB
C
Исходник Ответственный История

/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2008 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) 2007 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2011 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "opal/prefetch.h"
#include "opal/util/opal_environ.h"
#include "ompi/constants.h"
#include "ompi/runtime/ompi_module_exchange.h"
#include "ompi/mca/btl/base/btl_base_error.h"
#include "ompi/mca/common/mx/common_mx.h"
#include "btl_mx.h"
#include "btl_mx_frag.h"
#include "btl_mx_endpoint.h"
#if MX_HAVE_MAPPER_STATE
#include "mx_io.h"
#include "mx_internals/mx__fops.h"
#include "mx_internals/mx__driver_interface.h"
#endif /* MX_HAVE_MAPPER_STATE */
static int mca_btl_mx_component_register(void);
static int mca_btl_mx_component_open(void);
static int mca_btl_mx_component_close(void);
mca_btl_mx_component_t mca_btl_mx_component = {
{
/* First, the mca_base_component_t struct containing meta information
about the component itself */
{
MCA_BTL_BASE_VERSION_2_0_0,
"mx", /* MCA component name */
OMPI_MAJOR_VERSION, /* MCA component major version */
OMPI_MINOR_VERSION, /* MCA component minor version */
OMPI_RELEASE_VERSION, /* MCA component release version */
mca_btl_mx_component_open, /* component open */
mca_btl_mx_component_close, /* component close */
NULL, /* component query */
mca_btl_mx_component_register, /* component register */
},
{
/* The component is checkpoint ready */
MCA_BASE_METADATA_PARAM_CHECKPOINT
},
mca_btl_mx_component_init,
mca_btl_mx_component_progress,
}
};
static int mca_btl_mx_component_verify(void)
{
if( 0 >= mca_btl_mx_component.mx_bonding ) {
char* value = getenv("MX_BONDING");
if( NULL == value ) {
mca_btl_mx_component.mx_bonding = 1;
} else {
mca_btl_mx_component.mx_bonding = atoi(value);
if( 0 >= mca_btl_mx_component.mx_bonding )
mca_btl_mx_component.mx_bonding = 1;
}
} else if( 1 != mca_btl_mx_component.mx_bonding ) {
char value[8];
snprintf( value, 8, "%d\n", mca_btl_mx_component.mx_bonding );
opal_setenv( "MX_BONDING", value, true, &environ );
}
return mca_btl_base_param_verify(&mca_btl_mx_module.super);
}
static int mca_btl_mx_component_register(void)
{
mca_btl_mx_component.mx_max_btls = 8;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "max_btls",
"Maximum number of accepted Myrinet cards",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_max_btls);
mca_btl_mx_component.mx_timeout = MX_INFINITE;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "timeout",
"Timeout for connections",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_timeout);
mca_btl_mx_component.mx_connection_retries = 20;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "retries",
"Number of retries for each new connection before considering the peer as unreacheable",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_connection_retries);
mca_btl_mx_component.mx_filter = 0xdeadbeef;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "filter",
"Unique ID for the application (used to connect to the peers)",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_filter);
mca_btl_mx_component.mx_support_self = 0;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "self",
"Enable the MX support for self communications",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_support_self);
mca_btl_mx_component.mx_support_sharedmem = 0;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "shared_mem",
"Enable the MX support for shared memory",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_support_sharedmem);
mca_btl_mx_component.mx_bonding = 1;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "bonding",
"Integrate MX library bonding. Less than 0 is system default, everything else will set the MX_BONDING to the value.",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_bonding);
#ifdef HAVE_MX_REGISTER_UNEXP_HANDLER
mca_btl_mx_component.mx_use_unexpected = 0;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "register_unexp",
"Enable the MX support for the unexpected request handler (Open MPI matching)",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_use_unexpected);
#endif /* HAVE_MX_REGISTER_UNEXP_HANDLER */
mca_btl_mx_component.mx_free_list_num = 8;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "free_list_num",
"Number of allocated default request",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_free_list_num);
mca_btl_mx_component.mx_free_list_inc = 32;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "free_list_inc",
"Number of request we allocate each time we miss some",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_free_list_inc);
mca_btl_mx_component.mx_free_list_max = 1024;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "free_list_max",
"Maximum number of request this device is allowed to allocate",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_free_list_max);
mca_btl_mx_component.mx_max_posted_recv = 16;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "max_posted_recv",
"Number of received posted in advance. Increasing this number for communication "
"bound application can lead to visible improvement in performances",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_max_posted_recv);
#if MX_HAVE_MAPPER_STATE
mca_btl_mx_component.mx_if_include = NULL;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "if_include",
"Myrinet card to use (last 6 digits from the mapper MAC)",
MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_if_include);
mca_btl_mx_component.mx_if_exclude = NULL;
(void) mca_base_component_var_register(&mca_btl_mx_component.btl_version, "if_exclude",
"Myrinet card to avoid (last 6 digits from the mapper MAC)",
MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_mx_component.mx_if_exclude);
#endif /* MX_HAVE_MAPPER_STATE */
mca_btl_mx_module.super.btl_exclusivity = MCA_BTL_EXCLUSIVITY_DEFAULT;
if( mca_btl_mx_component.mx_use_unexpected ) {
mca_btl_mx_module.super.btl_eager_limit = 1024;
mca_btl_mx_module.super.btl_rndv_eager_limit = 1024;
} else {
mca_btl_mx_module.super.btl_eager_limit = 4*1024;
mca_btl_mx_module.super.btl_rndv_eager_limit = 4*1024;
}
mca_btl_mx_module.super.btl_max_send_size = 32*1024;
mca_btl_mx_module.super.btl_rdma_pipeline_send_length = 256*1024;
mca_btl_mx_module.super.btl_rdma_pipeline_frag_size = 8*1024*1024;
mca_btl_mx_module.super.btl_min_rdma_pipeline_size = 0;
mca_btl_mx_module.super.btl_flags = (MCA_BTL_FLAGS_SEND_INPLACE |
MCA_BTL_FLAGS_PUT |
MCA_BTL_FLAGS_SEND |
MCA_BTL_FLAGS_RDMA_MATCHED);
mca_btl_mx_module.super.btl_seg_size = sizeof (mca_btl_mx_segment_t);
mca_btl_mx_module.super.btl_bandwidth = 2000;
mca_btl_mx_module.super.btl_latency = 5;
mca_btl_base_param_register(&mca_btl_mx_component.super.btl_version,
&mca_btl_mx_module.super);
return mca_btl_mx_component_verify();
}
/*
* Called by MCA framework to open the component, registers
* component parameters.
*/
static int mca_btl_mx_component_open(void)
{
int ret;
/* initialize state */
mca_btl_mx_component.mx_num_btls = 0;
mca_btl_mx_component.mx_btls = NULL;
mca_btl_mx_component.mx_use_unexpected = 0;
ret = mca_btl_mx_component_verify();
if (OMPI_SUCCESS != ret) {
return ret;
}
/* initialize objects */
OBJ_CONSTRUCT(&mca_btl_mx_component.mx_procs, opal_list_t);
if( 0 == mca_btl_mx_component.mx_support_sharedmem )
opal_setenv( "MX_DISABLE_SHMEM", "1", true, &environ );
if( 0 == mca_btl_mx_component.mx_support_self )
opal_setenv( "MX_DISABLE_SELF", "1", true, &environ );
/* Force the long pipeline (up to 4Kb fragments) */
opal_setenv( "MX_PIPELINE_LOG", "0", true, &environ );
return OMPI_SUCCESS;
}
/*
* component cleanup - sanity checking of queue lengths
*/
static int mca_btl_mx_component_close(void)
{
if(OMPI_SUCCESS != ompi_common_mx_finalize()) {
return OMPI_ERROR;
}
if( NULL == mca_btl_mx_component.mx_btls )
return OMPI_SUCCESS;
/* release resources */
OBJ_DESTRUCT(&mca_btl_mx_component.mx_procs);
OBJ_DESTRUCT(&mca_btl_mx_component.mx_send_eager_frags);
OBJ_DESTRUCT(&mca_btl_mx_component.mx_send_user_frags);
OBJ_DESTRUCT(&mca_btl_mx_component.mx_procs);
OBJ_DESTRUCT(&mca_btl_mx_component.mx_lock);
#if MX_HAVE_MAPPER_STATE
if( NULL != mca_btl_mx_component.mx_if_include ) {
free( mca_btl_mx_component.mx_if_include );
mca_btl_mx_component.mx_if_include = NULL;
}
if( NULL != mca_btl_mx_component.mx_if_exclude ) {
free( mca_btl_mx_component.mx_if_exclude );
mca_btl_mx_component.mx_if_exclude = NULL;
}
#endif /* MX_HAVE_MAPPER_STATE */
return OMPI_SUCCESS;
}
static int __counter = 0;
#ifdef HAVE_MX_REGISTER_UNEXP_HANDLER
/**
* In order to avoid useless memcpy, the unexpected handler will be called
* by the MX library before doing any match in the MX internal queues. Here
* we have a chance to match the message using our own matching logic from
* the PML. If the match is realized, we will return MX_RECV_FINISHED (the
* MX request will vanish in the MX library). If the match do not succeed
* MX_RECV_CONTINUE have to be returned and the MX library will do the
* match itself.
*/
static mx_unexp_handler_action_t
mca_btl_mx_unexpected_handler( void *context, mx_endpoint_addr_t source,
uint64_t match_value, uint32_t length,
void * data_if_available )
{
mca_btl_mx_module_t* mx_btl = (mca_btl_mx_module_t*)context;
mca_btl_active_message_callback_t* reg;
mca_btl_base_tag_t tag;
mca_btl_base_descriptor_t descriptor;
mca_btl_base_segment_t segment;
if( 0 == __counter ) {
return MX_RECV_CONTINUE;
}
/*opal_output( 0, "Get unexpected handler context %p source %lld match_value %lld\n"
"\tlength %d data %p\n", context, source.stuff[0], match_value, length,
data_if_available );*/
if( !(0x01 & match_value) ) {
return MX_RECV_CONTINUE;
}
tag = (match_value >> 8) & 0xff;
reg = mca_btl_base_active_message_trigger + tag;
segment.seg_addr.pval = data_if_available;
segment.seg_len = length;
descriptor.des_dst = &segment;
descriptor.des_dst_cnt = 1;
reg->cbfunc( &(mx_btl->super), tag, &descriptor, reg->cbdata );
return MX_RECV_FINISHED;
}
#endif /* HAVE_MX_REGISTER_UNEXP_HANDLER */
/*
* Create and initialize an MX BTL module, where each module
* represents a specific NIC or a specific bonded set of NICS.
*/
static mca_btl_mx_module_t* mca_btl_mx_create(uint32_t board_num)
{
mca_btl_mx_module_t* mx_btl;
mx_endpoint_t mx_endpoint;
mx_endpoint_addr_t mx_endpoint_addr;
mx_return_t status;
uint32_t endpoint_id, mx_unique_network_id = 0;
uint64_t nic_id;
/* open local endpoint */
status = mx_open_endpoint( board_num, MX_ANY_ENDPOINT,
mca_btl_mx_component.mx_filter,
NULL, 0, &mx_endpoint);
if(status != MX_SUCCESS) {
opal_output( 0, "mca_btl_mx_init: mx_open_endpoint() failed with status %d (%s)\n",
status, mx_strerror(status) );
return NULL;
}
/* query the endpoint address */
if((status = mx_get_endpoint_addr( mx_endpoint,
&mx_endpoint_addr)) != MX_SUCCESS) {
opal_output( 0, "mca_btl_mx_init: mx_get_endpoint_addr() failed with status %d (%s)\n",
status, mx_strerror(status) );
mx_close_endpoint(mx_endpoint);
return NULL;
}
status = mx_decompose_endpoint_addr(mx_endpoint_addr, &nic_id, &endpoint_id);
if( MX_SUCCESS != status ) {
opal_output( 0, "mca_btl_mx_init: mx_decompose_endpoint_addr() failed with status %d (%s)\n",
status, mx_strerror(status) );
mx_close_endpoint(mx_endpoint);
return NULL;
}
status = mx_nic_id_to_board_number(nic_id, &board_num);
if( MX_SUCCESS != status ) {
opal_output( 0, "mca_btl_mx_init: mx_nic_id_to_board_number() failed with status %d (%s)\n",
status, mx_strerror(status) );
mx_close_endpoint(mx_endpoint);
return NULL;
}
#if MX_HAVE_MAPPER_STATE
{
mx_endpt_handle_t endp_handle;
mx_mapper_state_t ms;
char mapper_mac[7], *where;
status = mx_open_board( board_num, &endp_handle );
if( MX_SUCCESS != status ) {
opal_output( 0, "Unable to open board %d: %s\n", board_num, mx_strerror(status) );
mx_close_endpoint(mx_endpoint);
return NULL;
}
ms.board_number = board_num;
ms.iport = 0;
status = mx__get_mapper_state( endp_handle, &ms );
if( MX_SUCCESS != status ) {
opal_output( 0, "get_mapper_state failed for board %d: %s\n",
board_num, mx_strerror(status) );
mx_close_endpoint(mx_endpoint);
return NULL;
}
/* Keep the first 4 bytes for the network speed */
mx_unique_network_id = ((ms.mapper_mac[3] << 16) +
(ms.mapper_mac[4] << 8) +
(ms.mapper_mac[5]));
/* Try to figure out if we are allowed to use this network */
snprintf( mapper_mac, 7, "%6x", mx_unique_network_id );
if( (NULL != mca_btl_mx_component.mx_if_exclude) &&
(NULL != (where = strstr(mca_btl_mx_component.mx_if_exclude, mapper_mac))) ) {
mx_close_endpoint(mx_endpoint);
return NULL;
}
else if( (NULL != mca_btl_mx_component.mx_if_include) &&
(NULL == (where = strstr(mca_btl_mx_component.mx_if_include, mapper_mac))) ) {
mx_close_endpoint(mx_endpoint);
return NULL;
}
}
#endif /* MX_HAVE_MAPPER_STATE */
mx_btl = malloc(sizeof(mca_btl_mx_module_t));
if( NULL == mx_btl ) {
opal_output( 0, "mca_btl_mx_init: unable to allocate %lu bytes of memory\n",
sizeof(mca_btl_mx_module_t) );
mx_close_endpoint(mx_endpoint);
return NULL;
}
/* copy over default settings */
memcpy( mx_btl, &mca_btl_mx_module, sizeof(mca_btl_mx_module_t) );
OBJ_CONSTRUCT( &mx_btl->mx_peers, opal_list_t );
OBJ_CONSTRUCT( &mx_btl->mx_lock, opal_mutex_t );
mx_btl->mx_endpoint = mx_endpoint;
mx_btl->mx_endpoint_addr = mx_endpoint_addr;
mx_btl->super.btl_bandwidth = 2000; /* whatever */
mx_btl->super.btl_latency = 10;
#if defined(MX_HAS_NET_TYPE)
{
int value, board = board_num;
if( (status = mx_get_info( mx_btl->mx_endpoint, MX_LINE_SPEED,
&board, sizeof(board),
&value, sizeof(int))) != MX_SUCCESS ) {
opal_output( 0, "mx_get_info(MX_LINE_SPEED) failed with status %d (%s)\n",
status, mx_strerror(status) );
} else {
if( MX_SPEED_2G == value ) {
mx_unique_network_id |= 0xaa000000;
mx_btl->super.btl_bandwidth = 2000;
mx_btl->super.btl_latency = 5;
} else if( MX_SPEED_10G == value ) {
mx_unique_network_id |= 0xbb000000;
mx_btl->super.btl_bandwidth = 10000;
mx_btl->super.btl_latency = 3;
} else {
mx_unique_network_id |= 0xcc000000;
}
}
}
#endif /* defined(MX_HAS_NET_TYPE) */
mx_btl->super.btl_bandwidth *= mca_btl_mx_component.mx_bonding;
mx_btl->mx_unique_network_id = mx_unique_network_id;
#ifdef HAVE_MX_REGISTER_UNEXP_HANDLER
if( mca_btl_mx_component.mx_use_unexpected ) {
status = mx_register_unexp_handler( mx_btl->mx_endpoint, mca_btl_mx_unexpected_handler,
(void*)mx_btl );
if( MX_SUCCESS != status ) {
opal_output( 0, "mca_btl_mx_init: mx_register_unexp_handler() failed with status %d (%s)\n",
status, mx_strerror(status) );
/* switch to a mode without the unexpected handler */
mca_btl_mx_component.mx_use_unexpected = 0;
}
}
#endif /* HAVE_MX_REGISTER_UNEXP_HANDLER */
return mx_btl;
}
/*
* MX component initialization:
* - check if MX can be initialized.
* - and construct all static objects.
*/
mca_btl_base_module_t** mca_btl_mx_component_init(int *num_btl_modules,
bool enable_progress_threads,
bool enable_mpi_threads)
{
mca_btl_base_module_t** btls;
mx_return_t status;
uint32_t count;
int32_t i;
mca_btl_mx_addr_t *mx_addrs;
*num_btl_modules = 0;
/* First check if MX is available ... */
if( OMPI_SUCCESS != ompi_common_mx_initialize() ) {
ompi_modex_send(&mca_btl_mx_component.super.btl_version, NULL, 0);
return NULL;
}
/* get the number of card available on the system */
if( MX_SUCCESS != (status = mx_get_info( NULL, MX_NIC_COUNT, NULL, 0,
&mca_btl_mx_component.mx_num_btls,
sizeof(uint32_t))) ) {
opal_output( 0, "mca_btl_mx_component_init: mx_get_info(MX_NIC_COUNT) failed with status %d(%s)\n",
status, mx_strerror(status) );
return NULL;
}
/* Don't forget the bonding rules ... */
assert( mca_btl_mx_component.mx_bonding >= 1 );
mca_btl_mx_component.mx_num_btls /= mca_btl_mx_component.mx_bonding;
if (0 == mca_btl_mx_component.mx_num_btls) {
mca_btl_base_error_no_nics("Myrinet/MX", "NIC");
return NULL;
}
/* Limit ourselves to the number of devices requested by the users. */
if( mca_btl_mx_component.mx_num_btls > mca_btl_mx_component.mx_max_btls ) {
mca_btl_mx_component.mx_num_btls = mca_btl_mx_component.mx_max_btls;
}
/* initialize objects */
OBJ_CONSTRUCT(&mca_btl_mx_component.mx_send_eager_frags, ompi_free_list_t);
OBJ_CONSTRUCT(&mca_btl_mx_component.mx_send_user_frags, ompi_free_list_t);
OBJ_CONSTRUCT(&mca_btl_mx_component.mx_procs, opal_list_t);
OBJ_CONSTRUCT(&mca_btl_mx_component.mx_lock, opal_mutex_t);
ompi_free_list_init_new( &mca_btl_mx_component.mx_send_eager_frags,
sizeof(mca_btl_mx_frag_t) + mca_btl_mx_module.super.btl_eager_limit,
opal_cache_line_size,
OBJ_CLASS(mca_btl_mx_frag_t),
0,opal_cache_line_size,
mca_btl_mx_component.mx_free_list_num,
mca_btl_mx_component.mx_free_list_max,
mca_btl_mx_component.mx_free_list_inc,
NULL ); /* use default allocator */
ompi_free_list_init_new( &mca_btl_mx_component.mx_send_user_frags,
sizeof(mca_btl_mx_frag_t),
opal_cache_line_size,
OBJ_CLASS(mca_btl_mx_frag_t),
0,opal_cache_line_size,
mca_btl_mx_component.mx_free_list_num,
mca_btl_mx_component.mx_free_list_max,
mca_btl_mx_component.mx_free_list_inc,
NULL ); /* use default allocator */
/* intialize process hash table */
OBJ_CONSTRUCT( &mca_btl_mx_component.mx_procs, opal_list_t );
/* Now we know how many NIC are available on the system. We will create a BTL
* for each one and then give a pointer to the BTL to the upper level.
*/
mca_btl_mx_component.mx_btls = malloc( mca_btl_mx_component.mx_num_btls *
sizeof(mca_btl_base_module_t*) );
if( NULL == mca_btl_mx_component.mx_btls ) {
opal_output( 0, "MX BTL unable to allocate memory\n" );
return NULL;
}
mx_addrs = (mca_btl_mx_addr_t*)calloc( mca_btl_mx_component.mx_num_btls,
sizeof(mca_btl_mx_addr_t) );
if( NULL == mx_addrs ) {
opal_output( 0, "MX BTL unable to allocate memory\n" );
free(mca_btl_mx_component.mx_btls);
mca_btl_mx_component.mx_btls = NULL;
return NULL;
}
/* create a btl for each NIC */
for( i = count = 0; i < mca_btl_mx_component.mx_num_btls; i++ ) {
mca_btl_mx_module_t* mx_btl = mca_btl_mx_create(MX_ANY_NIC);
if( NULL == mx_btl ) {
continue;
}
status = mx_decompose_endpoint_addr( mx_btl->mx_endpoint_addr,
&(mx_addrs[count].nic_id),
&(mx_addrs[count].endpoint_id) );
if( MX_SUCCESS != status ) {
mca_btl_mx_finalize( &mx_btl->super );
continue;
}
mx_addrs[count].unique_network_id = mx_btl->mx_unique_network_id;
#if OPAL_ENABLE_HETEROGENEOUS_SUPPORT
BTL_MX_ADDR_HTON(mx_addrs[count]);
#endif
mca_btl_mx_component.mx_btls[count] = mx_btl;
count++; /* one more succesfully initialized MX interface */
}
mca_btl_mx_component.mx_num_btls = count;
*num_btl_modules = count;
if( 0 == count ) {
/* No active BTL module */
free(mx_addrs);
free(mca_btl_mx_component.mx_btls);
mca_btl_mx_component.mx_btls = NULL;
return NULL;
}
/* publish the MX addresses via the MCA framework */
ompi_modex_send(&mca_btl_mx_component.super.btl_version, mx_addrs,
sizeof(mca_btl_mx_addr_t) * mca_btl_mx_component.mx_num_btls);
free( mx_addrs );
btls = malloc( mca_btl_mx_component.mx_num_btls * sizeof(mca_btl_base_module_t*) );
if( NULL == btls ) {
free( mca_btl_mx_component.mx_btls );
mca_btl_mx_component.mx_num_btls = 0; /* no active BTL modules */
return NULL;
}
memcpy( btls, mca_btl_mx_component.mx_btls,
mca_btl_mx_component.mx_num_btls*sizeof(mca_btl_mx_module_t*) );
return btls;
}
/*
* MX component progress.
*/
int mca_btl_mx_component_progress(void)
{
int32_t num_progressed = 0, i;
mx_status_t mx_status;
mx_return_t mx_return;
mx_request_t mx_request;
mca_btl_mx_frag_t* frag;
++__counter;
for( i = 0; i < mca_btl_mx_component.mx_num_btls; i++ ) {
mca_btl_mx_module_t* mx_btl = mca_btl_mx_component.mx_btls[i];
uint32_t mx_result = 0;
recheck_device:
mx_return = mx_ipeek( mx_btl->mx_endpoint, &mx_request, &mx_result );
if( OPAL_UNLIKELY(mx_return != MX_SUCCESS) ) {
opal_output( 0, "mca_btl_mx_component_progress: mx_ipeek() failed with status %d (%s)\n",
mx_return, mx_strerror(mx_return) );
continue;
}
if( OPAL_LIKELY(mx_result == 0) ) {
continue;
}
mx_return = mx_test( mx_btl->mx_endpoint, &mx_request, &mx_status, &mx_result);
if( OPAL_UNLIKELY(mx_return != MX_SUCCESS) ) {
opal_output(0, "mca_btl_mx_progress: mx_test() failed with status %d (%s)\n",
mx_return, mx_strerror(mx_return));
continue;
}
/* on the mx_status we have now the pointer attached to the request.
* This pointer indicate which fragment we are working on. On the
* status we have the status of the operation, so we know what we
* are supposed to do next.
*/
frag = mx_status.context;
num_progressed++;
/* If the context is NULL then we are facing a send immediate request. Therefore,
* nothing special should be done, just keep going.
*/
if( NULL == frag ) goto recheck_device;
if( MCA_BTL_MX_SEND == frag->type ) { /* it's a send */
int btl_ownership = (frag->base.des_flags & MCA_BTL_DES_FLAGS_BTL_OWNERSHIP);
/* call the completion callback */
if( MCA_BTL_DES_SEND_ALWAYS_CALLBACK & frag->base.des_flags ) {
frag->base.des_cbfunc( &(mx_btl->super), frag->endpoint,
&(frag->base), OMPI_SUCCESS );
}
if( btl_ownership ) {
MCA_BTL_MX_FRAG_RETURN( mx_btl, frag );
}
goto recheck_device;
} else {
mca_btl_active_message_callback_t* reg;
mx_segment_t mx_segment;
uint8_t tag = (mx_status.match_info >> 8) & 0xff;
reg = mca_btl_base_active_message_trigger + tag;
frag->base.des_dst->seg_len = mx_status.msg_length;
reg->cbfunc( &(mx_btl->super), tag, &(frag->base), reg->cbdata );
/**
* The upper level extract the data from the fragment.
* Now we can register the fragment
* again with the MX BTL.
*/
mx_segment.segment_ptr = frag->base.des_dst->seg_addr.pval;
mx_segment.segment_length = mca_btl_mx_module.super.btl_eager_limit;
mx_return = mx_irecv( mx_btl->mx_endpoint, &mx_segment, 1,
0x01ULL, BTL_MX_RECV_MASK,
frag, &(frag->mx_request) );
if( MX_SUCCESS != mx_return ) {
opal_output( 0, "Fail to re-register a fragment with the MX NIC ... (%s)\n",
mx_strerror(mx_return) );
}
}
}
__counter--;
return num_progressed;
}
#if 0
{
int counters, board, i, value, *counters_value;
char text[MX_MAX_STR_LEN];
char *counters_name;
if( (status = mx_get_info( mx_btl->mx_endpoint, MX_PIO_SEND_MAX, NULL, 0,
&value, sizeof(int))) != MX_SUCCESS ) {
opal_output( 0, "mx_get_info(MX_PIO_SEND_MAX) failed with status %d (%s)\n",
status, mx_strerror(status) );
}
printf( "MX_PIO_SEND_MAX = %d\n", value );
if( (status = mx_get_info( mx_btl->mx_endpoint, MX_COPY_SEND_MAX, NULL, 0,
&value, sizeof(int))) != MX_SUCCESS ) {
opal_output( 0, "mx_get_info(MX_COPY_SEND_MAX) failed with status %d (%s)\n",
status, mx_strerror(status) );
}
printf( "MX_COPY_SEND_MAX = %d\n", value );
board = 0;
if( (status = mx_get_info( mx_btl->mx_endpoint, MX_PRODUCT_CODE, &board, sizeof(int),
text, MX_MAX_STR_LEN)) != MX_SUCCESS ) {
opal_output( 0, "mx_get_info(MX_PRODUCT_CODE) failed with status %d (%s)\n",
status, mx_strerror(status) );
}
printf( "product code %s\n", text );
if( (status = mx_get_info( mx_btl->mx_endpoint, MX_COUNTERS_COUNT, &board, sizeof(int),
&counters, sizeof(int))) != MX_SUCCESS ) {
opal_output( 0, "mx_get_info(MX_COUNTERS_COUNT) failed with status %d (%s)\n",
status, mx_strerror(status) );
}
printf( "counters = %d\n", counters );
counters_name = (char*)malloc( counters * MX_MAX_STR_LEN );
if( (status = mx_get_info( mx_btl->mx_endpoint, MX_COUNTERS_LABELS, &board, sizeof(int),
counters_name, counters * MX_MAX_STR_LEN)) != MX_SUCCESS ) {
opal_output( 0, "mx_get_info(MX_COUNTERS_LABELS) failed with status %d (%s)\n",
status, mx_strerror(status) );
}
counters_value = (int*)malloc( counters * sizeof(int) );
if( (status = mx_get_info( mx_btl->mx_endpoint, MX_COUNTERS_VALUES, &board, sizeof(int),
counters_value, counters * sizeof(int))) != MX_SUCCESS ) {
opal_output( 0, "mx_get_info(MX_COUNTERS_VALUES) failed with status %d (%s)\n",
status, mx_strerror(status) );
}
for( i = 0; i < counters; i++ )
printf( "%d -> %s = %d\n", i, counters_name + i * MX_MAX_STR_LEN,
counters_value[i] );
free( counters_name );
free( counters_value );
}
#endif
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