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openmpi/ompi/mca/btl/gm/btl_gm_component.c
George Bosilca 24316b77cf This commit is related to ticket #1362. The following devices respect the 
behavior described on the ticket: elan, gm, mx, self, sm, tcp.

This commit was SVN r18734.
2008-06-25 03:35:07 +00:00

737 строки
26 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) 2004-2005 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) 2007 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/constants.h"
#include "opal/event/event.h"
#include "opal/util/if.h"
#include "opal/util/argv.h"
#include "orte/util/show_help.h"
#include "ompi/mca/pml/pml.h"
#include "ompi/mca/btl/btl.h"
#include "ompi/request/request.h"
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#include "opal/mca/base/mca_base_param.h"
#include "orte/mca/errmgr/errmgr.h"
#include "ompi/mca/mpool/base/base.h"
#include "ompi/mca/mpool/rdma/mpool_rdma.h"
#include "btl_gm.h"
#include "btl_gm_frag.h"
#include "btl_gm_endpoint.h"
#include "ompi/mca/btl/base/base.h"
#include "ompi/mca/btl/base/btl_base_error.h"
#include "ompi/datatype/convertor.h"
#include "btl_gm_endpoint.h"
#include "orte/util/proc_info.h"
#include "orte/runtime/orte_globals.h"
#include "orte/util/name_fns.h"
#include "ompi/runtime/ompi_module_exchange.h"
#if OMPI_ENABLE_PROGRESS_THREADS
static void* mca_btl_gm_progress_thread( opal_object_t* arg );
#endif
static int gm_reg_mr(void *reg_data, void *base, size_t size,
mca_mpool_base_registration_t *reg);
static int gm_dereg_mr(void *reg_data, mca_mpool_base_registration_t *reg);
mca_btl_gm_component_t mca_btl_gm_component = {
{
/* First, the mca_base_component_t struct containing meta information
about the component itself */
{
/* Indicate that we are a pml v1.0.0 component (which also implies a
specific MCA version) */
MCA_BTL_BASE_VERSION_1_0_1,
"gm", /* 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_gm_component_open, /* component open */
mca_btl_gm_component_close /* component close */
},
/* Next the MCA v1.0.0 component meta data */
{
/* The component is not checkpoint ready */
MCA_BASE_METADATA_PARAM_NONE
},
mca_btl_gm_component_init,
mca_btl_gm_component_progress,
}
};
/*
* utility routines for parameter registration
*/
static inline char* mca_btl_gm_param_register_string(
const char* param_name,
const char* default_value)
{
char *param_value;
int id = mca_base_param_register_string("btl","gm",param_name,NULL,default_value);
mca_base_param_lookup_string(id, &param_value);
return param_value;
}
static inline int mca_btl_gm_param_register_int(
const char* param_name,
int default_value)
{
int id = mca_base_param_register_int("btl","gm",param_name,NULL,default_value);
int param_value = default_value;
mca_base_param_lookup_int(id,&param_value);
return param_value;
}
/*
* Called by MCA framework to open the component, registers
* component parameters.
*/
int mca_btl_gm_component_open(void)
{
/* initialize state */
mca_btl_gm_component.gm_num_btls=0;
mca_btl_gm_component.gm_btls=NULL;
/* initialize objects */
OBJ_CONSTRUCT(&mca_btl_gm_component.gm_procs, opal_list_t);
OBJ_CONSTRUCT(&mca_btl_gm_component.gm_lock, opal_mutex_t);
/* register GM component parameters */
mca_btl_gm_component.gm_free_list_num =
mca_btl_gm_param_register_int ("free_list_num", 8);
mca_btl_gm_component.gm_free_list_max =
mca_btl_gm_param_register_int ("free_list_max", -1);
mca_btl_gm_component.gm_free_list_inc =
mca_btl_gm_param_register_int ("free_list_inc", 8);
mca_btl_gm_component.gm_debug =
mca_btl_gm_param_register_int("debug", 0);
mca_btl_gm_component.gm_mpool_name =
mca_btl_gm_param_register_string("mpool", "rdma");
mca_btl_gm_component.gm_max_ports =
mca_btl_gm_param_register_int("max_ports", 16);
mca_btl_gm_component.gm_max_boards =
mca_btl_gm_param_register_int("max_boards", 4);
mca_btl_gm_component.gm_max_btls =
mca_btl_gm_param_register_int("max_modules", 4);
mca_btl_gm_component.gm_num_high_priority =
mca_btl_gm_param_register_int("num_high_priority", 8);
mca_btl_gm_component.gm_num_repost =
mca_btl_gm_param_register_int("num_repost", 4);
mca_btl_gm_component.gm_port_name=
mca_btl_gm_param_register_string("port_name", "OMPI");
/* register gm module parameters */
mca_btl_gm_module.super.btl_exclusivity = MCA_BTL_EXCLUSIVITY_DEFAULT;
mca_btl_gm_module.super.btl_eager_limit = 32*1024;
mca_btl_gm_module.super.btl_rndv_eager_limit = 32*1024;
mca_btl_gm_module.super.btl_max_send_size = 64*1024;
mca_btl_gm_module.super.btl_rdma_pipeline_send_length = 512*1024;
mca_btl_gm_module.super.btl_rdma_pipeline_frag_size = 128*1024;
mca_btl_gm_module.super.btl_min_rdma_pipeline_size = 128*1024;
#if OMPI_MCA_BTL_GM_HAVE_RDMA_PUT
mca_btl_gm_module.super.btl_flags = MCA_BTL_FLAGS_PUT |
MCA_BTL_FLAGS_NEED_ACK | MCA_BTL_FLAGS_NEED_CSUM;
#else
mca_btl_gm_module.super.btl_flags = MCA_BTL_FLAGS_SEND;
#endif
mca_btl_gm_module.super.btl_bandwidth = 250;
mca_btl_gm_module.super.btl_latency = 0;
mca_btl_base_param_register(&mca_btl_gm_component.super.btl_version,
&mca_btl_gm_module.super);
/* compute the eager frag size */
mca_btl_gm_component.gm_eager_frag_size =
gm_min_size_for_length(mca_btl_gm_module.super.btl_eager_limit) - 1;
mca_btl_gm_module.super.btl_eager_limit =
gm_max_length_for_size(mca_btl_gm_component.gm_eager_frag_size) -
sizeof(mca_btl_base_header_t);
/* compute the max frag size */
mca_btl_gm_component.gm_max_frag_size =
gm_min_size_for_length(mca_btl_gm_module.super.btl_max_send_size) - 1;
mca_btl_gm_module.super.btl_max_send_size =
gm_max_length_for_size(mca_btl_gm_component.gm_max_frag_size) -
sizeof(mca_btl_base_header_t);
return OMPI_SUCCESS;
}
/*
* component cleanup - sanity checking of queue lengths
*/
int mca_btl_gm_component_close(void)
{
return OMPI_SUCCESS;
}
static int gm_reg_mr(void *reg_data, void *base, size_t size,
mca_mpool_base_registration_t *reg)
{
struct gm_port *port = (struct gm_port*)reg_data;
int rc;
rc = gm_register_memory(port, base, size);
if(rc != GM_SUCCESS)
return OMPI_ERR_OUT_OF_RESOURCE;
return MPI_SUCCESS;
}
static int gm_dereg_mr(void *reg_data, mca_mpool_base_registration_t *reg)
{
struct gm_port *port = (struct gm_port*)reg_data;
int rc;
rc = gm_deregister_memory(port, reg->base, reg->bound - reg->base + 1);
if(rc != GM_SUCCESS) {
opal_output(0, "%s: error unpinning gm memory errno says %s\n",
__func__, strerror(errno));
return OMPI_ERROR;
}
return OMPI_SUCCESS;
}
/**
* Initialize module instance
*/
static int
mca_btl_gm_module_init (mca_btl_gm_module_t * btl)
{
mca_mpool_base_resources_t resources;
int32_t num_high_priority;
int32_t i;
int rc;
/* initialize objects */
OBJ_CONSTRUCT(&btl->gm_frag_eager, ompi_free_list_t);
OBJ_CONSTRUCT(&btl->gm_frag_max, ompi_free_list_t);
OBJ_CONSTRUCT(&btl->gm_frag_user, ompi_free_list_t);
OBJ_CONSTRUCT(&btl->gm_pending, opal_list_t);
OBJ_CONSTRUCT(&btl->gm_repost, opal_list_t);
#if OMPI_ENABLE_PROGRESS_THREADS
OBJ_CONSTRUCT(&btl->gm_thread, opal_thread_t);
#endif
btl->error_cb = NULL;
/* query nic tokens */
btl->gm_num_send_tokens = gm_num_send_tokens (btl->port);
btl->gm_max_send_tokens = btl->gm_num_send_tokens;
btl->gm_num_recv_tokens = gm_num_receive_tokens (btl->port);
btl->gm_max_recv_tokens = btl->gm_num_recv_tokens;
/* dont allow high priority to exceed 1/2 of available recv tokens */
num_high_priority = mca_btl_gm_component.gm_num_high_priority;
if(num_high_priority > (btl->gm_num_recv_tokens >> 1)) {
num_high_priority = btl->gm_num_recv_tokens >> 1;
}
if(mca_btl_gm_component.gm_num_repost > num_high_priority >> 1) {
btl->gm_num_repost = (num_high_priority >> 1);
} else {
btl->gm_num_repost = mca_btl_gm_component.gm_num_repost;
}
/* initialize memory pool */
resources.reg_data = (void*)btl->port;
resources.sizeof_reg = sizeof(mca_mpool_base_registration_t);
resources.register_mem = gm_reg_mr;
resources.deregister_mem = gm_dereg_mr;
btl->super.btl_mpool = mca_mpool_base_module_create(
mca_btl_gm_component.gm_mpool_name,
&btl->super,
&resources);
if(NULL == btl->super.btl_mpool) {
opal_output (0, "[%s:%d] unable to initialize mpool", __FILE__, __LINE__);
return OMPI_ERROR;
}
/* initialize free lists */
ompi_free_list_init_new( &btl->gm_frag_eager,
sizeof (mca_btl_gm_frag_eager_t),
CACHE_LINE_SIZE,
OBJ_CLASS (mca_btl_gm_frag_eager_t),
(1 << mca_btl_gm_component.gm_eager_frag_size) + sizeof (uintptr_t),
CACHE_LINE_SIZE,
btl->gm_max_send_tokens,
mca_btl_gm_component.gm_free_list_max,
mca_btl_gm_component.gm_free_list_inc,
btl->super.btl_mpool );
ompi_free_list_init_new( &btl->gm_frag_max,
sizeof (mca_btl_gm_frag_max_t),
CACHE_LINE_SIZE,
OBJ_CLASS (mca_btl_gm_frag_max_t),
(1 << mca_btl_gm_component.gm_max_frag_size) + sizeof (uintptr_t),
CACHE_LINE_SIZE,
btl->gm_max_recv_tokens,
mca_btl_gm_component.gm_free_list_max,
mca_btl_gm_component.gm_free_list_inc,
btl->super.btl_mpool );
ompi_free_list_init_new( &btl->gm_frag_user,
sizeof (mca_btl_gm_frag_user_t),
CACHE_LINE_SIZE,
OBJ_CLASS (mca_btl_gm_frag_user_t),
0,CACHE_LINE_SIZE,
mca_btl_gm_component.gm_free_list_num,
mca_btl_gm_component.gm_free_list_max,
mca_btl_gm_component.gm_free_list_inc,
NULL );
/* post receive buffers */
for(i=0; i<num_high_priority; i++) {
mca_btl_gm_frag_t* frag;
MCA_BTL_GM_FRAG_ALLOC_EAGER(btl, frag, rc);
if(NULL == frag) {
return rc;
}
frag->type = MCA_BTL_GM_EAGER;
frag->base.des_src = NULL;
frag->base.des_src_cnt = 0;
frag->base.des_dst = &frag->segment;
frag->base.des_dst_cnt = 1;
frag->priority = GM_HIGH_PRIORITY;
gm_provide_receive_buffer(btl->port, frag->hdr, frag->size, frag->priority);
}
for(i=mca_btl_gm_component.gm_num_high_priority; i<btl->gm_max_recv_tokens; i++) {
mca_btl_gm_frag_t* frag;
MCA_BTL_GM_FRAG_ALLOC_MAX(btl, frag, rc);
if(NULL == frag) {
return rc;
}
frag->type = MCA_BTL_GM_SEND;
frag->base.des_src = NULL;
frag->base.des_src_cnt = 0;
frag->base.des_dst = &frag->segment;
frag->base.des_dst_cnt = 1;
frag->priority = GM_LOW_PRIORITY;
gm_provide_receive_buffer(btl->port, frag->hdr, frag->size, frag->priority);
}
/* enable rdma */
if( GM_SUCCESS != gm_allow_remote_memory_access (btl->port) ) {
opal_output (0, "[%s:%d] unable to allow remote memory access", __FILE__, __LINE__);
return OMPI_ERROR;
}
#if OMPI_ENABLE_PROGRESS_THREADS
/* start progress thread */
btl->gm_progress = true;
btl->gm_thread.t_run = mca_btl_gm_progress_thread;
btl->gm_thread.t_arg = btl;
if(OPAL_SUCCESS != (rc = opal_thread_start(&btl->gm_thread))) {
opal_output (0, "[%s:%d] unable to create progress thread, retval=%d", __FILE__, __LINE__, rc);
return rc;
}
#endif
return OMPI_SUCCESS;
}
/*
* Scan all ports on the boards. As it's difficult to find the total number of boards
* so we use a predefined maximum.
*/
static int mca_btl_gm_discover( void )
{
uint32_t board_no;
uint32_t port_no;
uint32_t node_id;
struct gm_port* port;
#if GM_API_VERSION > 0x200
uint32_t global_id;
#else
char global_id[GM_MAX_HOST_NAME_LEN];
#endif /* GM_API_VERSION > 0x200 */
int rc;
for( board_no = 0; board_no < mca_btl_gm_component.gm_max_boards; board_no++ ) {
mca_btl_gm_module_t *btl;
/* open the first available gm port for this board */
for( port_no = 4; port_no < mca_btl_gm_component.gm_max_ports; port_no++ ) {
if (3 == port_no) {
continue; /* port 0,1,3 reserved */
} else if (GM_SUCCESS == gm_open(&port, board_no, port_no,
mca_btl_gm_component.gm_port_name, GM_API_VERSION) ) {
break;
}
}
if( port_no == mca_btl_gm_component.gm_max_ports ) {
continue;
}
/* Get node local Id */
if( GM_SUCCESS != gm_get_node_id( port, &node_id) ) {
opal_output (0, " failure to get node_id \n");
continue;
}
/* Gather an unique id for the node */
#if GM_API_VERSION > 0x200
if (GM_SUCCESS != gm_node_id_to_global_id( port, node_id, &global_id) ) {
opal_output (0, "[%s:%d] Unable to get my GM global unique id", __FILE__, __LINE__);
continue;
}
#else
if( GM_SUCCESS != gm_get_host_name( port, global_id ) ) {
opal_output( 0, "[%s:%d] Unable to get the GM host name\n", __FILE__, __LINE__);
continue;
}
#endif /* GM_API_VERSION > 0x200 */
/* create the btl module */
btl = (mca_btl_gm_module_t *)malloc( sizeof(mca_btl_gm_module_t) );
if (NULL == btl) {
opal_output( 0, "[%s:%d] out of resources", __FILE__, __LINE__);
return OMPI_ERR_OUT_OF_RESOURCE;
}
/* copy the basic informations into the new BTL */
memcpy (btl, &mca_btl_gm_module, sizeof(mca_btl_gm_module_t));
/* setup local address */
btl->port = port;
btl->gm_addr.port_id = port_no;
btl->gm_addr.node_id = node_id;
#if GM_API_VERSION > 0x200
btl->gm_addr.global_id = global_id;
#else
strncpy( btl->gm_addr.global_id, global_id, GM_MAX_HOST_NAME_LEN );
#endif /* GM_API_VERSION > 0x200 */
if(mca_btl_gm_component.gm_debug > 0) {
opal_output(0,
"%s gm_port %08lX, "
"board %" PRIu32 ", global %" PRIu32 " "
"node %" PRIu32 "port %" PRIu32 "\n",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(unsigned long) port, board_no, global_id, node_id, port_no);
}
if((rc = mca_btl_gm_module_init(btl)) != OMPI_SUCCESS) {
opal_output(0, "[%s:%d] unable to initialze gm port", __FILE__, __LINE__);
return rc;
}
/* everything is OK let's mark it as usable and go to the next one */
mca_btl_gm_component.gm_btls[mca_btl_gm_component.gm_num_btls] = btl;
if(++mca_btl_gm_component.gm_num_btls >= mca_btl_gm_component.gm_max_btls ) {
break;
}
}
return OMPI_SUCCESS;
}
/*
* Register GM component addressing information. The MCA framework
* will make this available to all peers.
*/
static int
mca_btl_gm_modex_send(void)
{
int rc;
size_t i;
size_t size;
mca_btl_gm_addr_t *addrs = NULL;
size = mca_btl_gm_component.gm_num_btls * sizeof (mca_btl_gm_addr_t);
if (0 != size) {
addrs = (mca_btl_gm_addr_t *)malloc (size);
if (NULL == addrs) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
for (i = 0; i < mca_btl_gm_component.gm_num_btls; i++) {
mca_btl_gm_module_t *btl = mca_btl_gm_component.gm_btls[i];
addrs[i] = btl->gm_addr;
MCA_BTL_GM_ADDR_HTON(addrs[i]);
}
}
rc = ompi_modex_send (&mca_btl_gm_component.super.btl_version, addrs, size);
if (NULL != addrs) {
free (addrs);
}
return rc;
}
/*
* Initialize the GM component,
* check how many boards are available and open ports on them.
*/
mca_btl_base_module_t **
mca_btl_gm_component_init (int *num_btl_modules,
bool enable_progress_threads,
bool enable_mpi_threads)
{
mca_btl_base_module_t **btls;
*num_btl_modules = 0;
OPAL_THREAD_LOCK(&mca_btl_gm_component.gm_lock);
/* try to initialize GM */
if( GM_SUCCESS != gm_init() ) {
opal_output( 0, "[%s:%d] error in initializing the gm library\n", __FILE__, __LINE__ );
mca_btl_gm_component.gm_num_btls = 0;
mca_btl_gm_modex_send();
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
return NULL;
}
/* First discover all available boards. For each board we create a unique BTL */
mca_btl_gm_component.gm_btls = malloc( mca_btl_gm_component.gm_max_btls * sizeof (mca_btl_gm_module_t *));
if (NULL == mca_btl_gm_component.gm_btls) {
opal_output( 0, "[%s:%d] out of resources.", __FILE__, __LINE__ );
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
return NULL;
}
/* initialize gm */
if (OMPI_SUCCESS != mca_btl_gm_discover()) {
mca_btl_base_error_no_nics("Myrinet/GM", "NIC");
mca_btl_gm_component.gm_num_btls = 0;
mca_btl_gm_modex_send();
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
return NULL;
}
if (mca_btl_gm_component.gm_num_btls == 0) {
mca_btl_base_error_no_nics("Myrinet/GM", "NIC");
mca_btl_gm_component.gm_num_btls = 0;
mca_btl_gm_modex_send();
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
return NULL;
}
/* publish GM parameters with the MCA framework */
if (OMPI_SUCCESS != mca_btl_gm_modex_send()) {
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
return NULL;
}
/* return array of BTLs */
btls = (mca_btl_base_module_t**) malloc (
mca_btl_gm_component.gm_num_btls * sizeof(mca_btl_base_module_t *));
if (NULL == btls) {
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
return NULL;
}
memcpy(btls, mca_btl_gm_component.gm_btls,
mca_btl_gm_component.gm_num_btls * sizeof(mca_btl_gm_module_t *));
*num_btl_modules = mca_btl_gm_component.gm_num_btls;
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
return btls;
}
/*
* GM component progress.
*/
int mca_btl_gm_component_progress()
{
static int32_t inprogress = 0;
int count = 0;
size_t i;
/* could get into deadlock in this case as we post recvs after callback completes */
if(OPAL_THREAD_ADD32(&inprogress, 1) > 1) {
OPAL_THREAD_ADD32(&inprogress, -1);
return OMPI_SUCCESS;
}
OPAL_THREAD_LOCK(&mca_btl_gm_component.gm_lock);
for( i = 0; i < mca_btl_gm_component.gm_num_btls; ) {
mca_btl_gm_module_t* btl = mca_btl_gm_component.gm_btls[i];
gm_recv_event_t* event = gm_receive(btl->port);
/* If there are no receive events just skip the function call */
switch(gm_ntohc(event->recv.type)) {
case GM_FAST_RECV_EVENT:
case GM_FAST_PEER_RECV_EVENT:
case GM_FAST_HIGH_RECV_EVENT:
case GM_FAST_HIGH_PEER_RECV_EVENT:
{
unsigned char* buffer = (unsigned char*)gm_ntohp(event->recv.buffer);
mca_btl_gm_frag_t* frag = (mca_btl_gm_frag_t*)*((uintptr_t*)(buffer - sizeof(uintptr_t)));
mca_btl_base_header_t* hdr = (mca_btl_base_header_t *)gm_ntohp(event->recv.message);
mca_btl_active_message_callback_t* reg;
frag->segment.seg_addr.pval = (hdr+1);
frag->segment.seg_len = gm_ntohl(event->recv.length) - sizeof(mca_btl_base_header_t);
reg = mca_btl_base_active_message_trigger + hdr->tag;
/* cbfunc may be null if interface goes down.. */
if(reg->cbfunc) {
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
reg->cbfunc(&btl->super, hdr->tag, &frag->base, reg->cbdata);
OPAL_THREAD_LOCK(&mca_btl_gm_component.gm_lock);
} else {
btl->error_cb(&btl->super, MCA_BTL_ERROR_FLAGS_FATAL);
return 0;
}
MCA_BTL_GM_FRAG_POST(btl,frag);
count++;
break;
}
case GM_RECV_EVENT:
case GM_PEER_RECV_EVENT:
case GM_HIGH_RECV_EVENT:
case GM_HIGH_PEER_RECV_EVENT:
{
unsigned char* buffer = (unsigned char*)gm_ntohp(event->recv.buffer);
mca_btl_gm_frag_t* frag = (mca_btl_gm_frag_t*)*((uintptr_t*)(buffer - sizeof(uintptr_t)));
mca_btl_base_header_t* hdr = (mca_btl_base_header_t*)buffer;
mca_btl_active_message_callback_t* reg;
frag->segment.seg_addr.pval = (hdr+1);
frag->segment.seg_len = gm_ntohl(event->recv.length) - sizeof(mca_btl_base_header_t);
reg = mca_btl_base_active_message_trigger + hdr->tag;
if(reg->cbfunc) {
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
reg->cbfunc(&btl->super, hdr->tag, &frag->base, reg->cbdata);
OPAL_THREAD_LOCK(&mca_btl_gm_component.gm_lock);
MCA_BTL_GM_FRAG_POST(btl,frag);
} else {
btl->error_cb(&btl->super, MCA_BTL_ERROR_FLAGS_FATAL);
return 0;
}
count++;
break;
}
case GM_NO_RECV_EVENT:
i++;
break;
default:
gm_unknown(btl->port, event);
break;
}
}
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
OPAL_THREAD_ADD32(&inprogress, -1);
return count;
}
#if OMPI_ENABLE_PROGRESS_THREADS
static void* mca_btl_gm_progress_thread( opal_object_t* arg )
{
opal_thread_t* thread = (opal_thread_t*)arg;
mca_btl_gm_module_t* btl = thread->t_arg;
/* This thread enter in a cancel enabled state */
pthread_setcancelstate( PTHREAD_CANCEL_ENABLE, NULL );
pthread_setcanceltype( PTHREAD_CANCEL_ASYNCHRONOUS, NULL );
OPAL_THREAD_LOCK(&mca_btl_gm_component.gm_lock);
while(btl->gm_progress) {
gm_recv_event_t* event;
/* dont process events while the app is in the library */
while(opal_progress_threads()) {
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
while(opal_progress_threads())
sched_yield();
usleep(100); /* give app a chance to re-enter library */
OPAL_THREAD_LOCK(&mca_btl_gm_component.gm_lock);
}
/* otherwise processes any pending events */
event = gm_blocking_receive_no_spin(btl->port);
switch(gm_ntohc(event->recv.type)) {
case GM_FAST_RECV_EVENT:
case GM_FAST_PEER_RECV_EVENT:
case GM_FAST_HIGH_RECV_EVENT:
case GM_FAST_HIGH_PEER_RECV_EVENT:
{
unsigned char* buffer = (unsigned char*)gm_ntohp(event->recv.buffer);
mca_btl_gm_frag_t* frag = (mca_btl_gm_frag_t*)*((uintptr_t*)(buffer - sizeof(uintptr_t)));
mca_btl_base_header_t* hdr = (mca_btl_base_header_t *)gm_ntohp(event->recv.message);
mca_btl_active_message_callback_t* reg;
frag->segment.seg_addr.pval = (hdr+1);
frag->segment.seg_len = gm_ntohl(event->recv.length) - sizeof(mca_btl_base_header_t);
reg = mca_btl_base_active_message_trigger + hdr->tag;
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
reg->cbfunc(&btl->super, hdr->tag, &frag->base, reg->cbdata);
OPAL_THREAD_LOCK(&mca_btl_gm_component.gm_lock);
MCA_BTL_GM_FRAG_POST(btl,frag);
break;
}
case GM_RECV_EVENT:
case GM_PEER_RECV_EVENT:
case GM_HIGH_RECV_EVENT:
case GM_HIGH_PEER_RECV_EVENT:
{
unsigned char* buffer = (unsigned char*)gm_ntohp(event->recv.buffer);
mca_btl_gm_frag_t* frag = (mca_btl_gm_frag_t*)*((uintptr_t*)(buffer - sizeof(uintptr_t)));
mca_btl_base_header_t* hdr = (mca_btl_base_header_t*)buffer;
mca_btl_active_message_callback_t* reg;
frag->segment.seg_addr.pval = (hdr+1);
frag->segment.seg_len = gm_ntohl(event->recv.length) - sizeof(mca_btl_base_header_t);
reg = mca_btl_base_active_message_trigger + hdr->tag;
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
reg->cbfunc(&btl->super, hdr->tag, &frag->base, reg->cbdata);
OPAL_THREAD_LOCK(&mca_btl_gm_component.gm_lock);
MCA_BTL_GM_FRAG_POST(btl,frag);
break;
}
case _GM_SLEEP_EVENT:
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
gm_unknown(btl->port, event);
OPAL_THREAD_LOCK(&mca_btl_gm_component.gm_lock);
break;
default:
gm_unknown(btl->port, event);
break;
}
}
OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
return PTHREAD_CANCELED;
}
#endif
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