int psmx_fabric(struct fi_fabric_attr *attr, struct fid_fabric **fabric, void *context) { struct psmx_fid_fabric *fabric_priv; int ret; FI_INFO(&psmx_prov, FI_LOG_CORE, "\n"); if (strcmp(attr->name, PSMX_FABRIC_NAME)) return -FI_ENODATA; if (psmx_active_fabric) { psmx_fabric_acquire(psmx_active_fabric); *fabric = &psmx_active_fabric->util_fabric.fabric_fid; return 0; } fabric_priv = calloc(1, sizeof(*fabric_priv)); if (!fabric_priv) return -FI_ENOMEM; ret = ofi_fabric_init(&psmx_prov, &psmx_fabric_attr, attr, &fabric_priv->util_fabric, context, FI_MATCH_EXACT); if (ret) { FI_INFO(&psmx_prov, FI_LOG_CORE, "ofi_fabric_init returns %d\n", ret); free(fabric_priv); return ret; } /* fclass & context initialzied in ofi_fabric_init */ fabric_priv->util_fabric.fabric_fid.fid.ops = &psmx_fabric_fi_ops; fabric_priv->util_fabric.fabric_fid.ops = &psmx_fabric_ops; psmx_get_uuid(fabric_priv->uuid); if (psmx_env.name_server) { ret = pthread_create(&fabric_priv->name_server_thread, NULL, psmx_name_server, (void *)fabric_priv); if (ret) { FI_INFO(&psmx_prov, FI_LOG_CORE, "pthread_create returns %d\n", ret); /* use the main thread's ID as invalid value for the new thread */ fabric_priv->name_server_thread = pthread_self(); } } psmx_query_mpi(); /* take the reference to count for multiple fabric open calls */ psmx_fabric_acquire(fabric_priv); *fabric = &fabric_priv->util_fabric.fabric_fid; psmx_active_fabric = fabric_priv; return 0; }
static int psmx_ns_connect_server(const char *server) { struct addrinfo hints = { .ai_family = AF_UNSPEC, .ai_socktype = SOCK_STREAM }; struct addrinfo *res, *p; psm_uuid_t uuid; int port; char *service; int sockfd = -1; int n; psmx_get_uuid(uuid); port = psmx_uuid_to_port(uuid); if (asprintf(&service, "%d", port) < 0) return -1; n = getaddrinfo(server, service, &hints, &res); if (n < 0) { FI_INFO(&psmx_prov, FI_LOG_CORE, "(%s:%d):%s\n", server, port, gai_strerror(n)); free(service); return -1; } for (p = res; p; p = p->ai_next) { sockfd = socket(p->ai_family, p->ai_socktype, p->ai_protocol); if (sockfd >= 0) { if (!connect(sockfd, p->ai_addr, p->ai_addrlen)) break; close(sockfd); sockfd = -1; } } if (sockfd < 0) { FI_INFO(&psmx_prov, FI_LOG_CORE, "couldn't connect to %s:%d\n", server, port); } freeaddrinfo(res); free(service); return sockfd; }
static int psmx_fabric(struct fi_fabric_attr *attr, struct fid_fabric **fabric, void *context) { struct psmx_fid_fabric *fabric_priv; pthread_t thread; pthread_attr_t thread_attr; FI_INFO(&psmx_prov, FI_LOG_CORE, "\n"); if (strncmp(attr->name, PSMX_FABRIC_NAME, PSMX_FABRIC_NAME_LEN)) return -FI_ENODATA; if (psmx_active_fabric) { psmx_active_fabric->refcnt++; *fabric = &psmx_active_fabric->fabric; return 0; } fabric_priv = calloc(1, sizeof(*fabric_priv)); if (!fabric_priv) return -FI_ENOMEM; fabric_priv->fabric.fid.fclass = FI_CLASS_FABRIC; fabric_priv->fabric.fid.context = context; fabric_priv->fabric.fid.ops = &psmx_fabric_fi_ops; fabric_priv->fabric.ops = &psmx_fabric_ops; psmx_get_uuid(fabric_priv->uuid); if (psmx_env.name_server) { pthread_attr_init(&thread_attr); pthread_attr_setdetachstate(&thread_attr,PTHREAD_CREATE_DETACHED); pthread_create(&thread, &thread_attr, psmx_name_server, (void *)fabric_priv); } psmx_query_mpi(); fabric_priv->refcnt = 1; *fabric = &fabric_priv->fabric; return 0; }
void *psmx_resolve_name(const char *servername, int port) { struct addrinfo hints = { .ai_family = AF_UNSPEC, .ai_socktype = SOCK_STREAM }; struct addrinfo *res, *p; psm_uuid_t uuid; char *service; void *dest_addr; int sockfd = -1; int n; if (!port) { psmx_get_uuid(uuid); port = psmx_uuid_to_port(uuid); } if (asprintf(&service, "%d", port) < 0) return NULL; n = getaddrinfo(servername, service, &hints, &res); if (n < 0) { FI_INFO(&psmx_prov, FI_LOG_CORE, "(%s:%d):%s\n", servername, port, gai_strerror(n)); free(service); return NULL; } for (p = res; p; p = p->ai_next) { sockfd = socket(p->ai_family, p->ai_socktype, p->ai_protocol); if (sockfd >= 0) { if (!connect(sockfd, p->ai_addr, p->ai_addrlen)) break; close(sockfd); sockfd = -1; } } freeaddrinfo(res); free(service); if (sockfd < 0) { FI_INFO(&psmx_prov, FI_LOG_CORE, "couldn't connect to %s:%d\n", servername, port); return NULL; } dest_addr = calloc(1,sizeof(psm_epid_t)); if (!dest_addr) { close(sockfd); return NULL; } if (read(sockfd, dest_addr, sizeof(psm_epid_t)) != sizeof(psm_epid_t)) { FI_INFO(&psmx_prov, FI_LOG_CORE, "error reading response from %s:%d\n", servername, port); free(dest_addr); close(sockfd); return NULL; } close(sockfd); return dest_addr; }
static int psmx_getinfo(uint32_t version, const char *node, const char *service, uint64_t flags, const struct fi_info *hints, struct fi_info **info) { struct fi_info *psmx_info; uint32_t cnt = 0; psm_epid_t *dest_addr = NULL; struct psmx_src_name *src_addr = NULL; int ep_type = FI_EP_RDM; int av_type = FI_AV_UNSPEC; uint64_t mode = FI_CONTEXT; enum fi_mr_mode mr_mode = FI_MR_SCALABLE; enum fi_threading threading = FI_THREAD_COMPLETION; enum fi_progress control_progress = FI_PROGRESS_MANUAL; enum fi_progress data_progress = FI_PROGRESS_MANUAL; int caps = 0; uint64_t max_tag_value = 0; int err = -FI_ENODATA; int svc0, svc = PSMX_ANY_SERVICE; FI_INFO(&psmx_prov, FI_LOG_CORE,"\n"); *info = NULL; /* Perform some quick check first to avoid unnecessary operations */ if (hints) { if (hints->fabric_attr && hints->fabric_attr->name && strcasecmp(hints->fabric_attr->name, PSMX_FABRIC_NAME)) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->fabric_name=%s, supported=%s\n", hints->fabric_attr->name, PSMX_FABRIC_NAME); goto err_out; } if (hints->domain_attr && hints->domain_attr->name && strcasecmp(hints->domain_attr->name, PSMX_DOMAIN_NAME)) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->domain_name=%s, supported=%s\n", hints->domain_attr->name, PSMX_DOMAIN_NAME); goto err_out; } if (hints->ep_attr) { switch (hints->ep_attr->type) { case FI_EP_UNSPEC: case FI_EP_DGRAM: case FI_EP_RDM: break; default: FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->ep_attr->type=%d, supported=%d,%d,%d.\n", hints->ep_attr->type, FI_EP_UNSPEC, FI_EP_DGRAM, FI_EP_RDM); goto err_out; } } if ((hints->caps & PSMX_CAPS) != hints->caps && (hints->caps & PSMX_CAPS2) != hints->caps) { uint64_t psmx_caps = PSMX_CAPS; uint64_t psmx_caps2 = PSMX_CAPS2; PSMX_INFO_DIFF("hints->caps", hints->caps, psmx_caps, FI_TYPE_CAPS); PSMX_INFO_DIFF("alternatively, hints->caps", hints->caps, psmx_caps2, FI_TYPE_CAPS); goto err_out; } } if (FI_VERSION_GE(version, FI_VERSION(1,5))) mr_mode = 0; if (psmx_init_lib()) return -FI_ENODATA; if (psmx_compat_lib) { /* * native PSM running over TrueScale doesn't have the issue handled * here. it's only present when PSM is supported via the psm2-compat * library, where the PSM functions are just wrappers around the PSM2 * counterparts. * * psm2_ep_num_devunits() may wait for 15 seconds before return * when /dev/hfi1_0 is not present. Check the existence of any hfi1 * device interface first to avoid this delay. Note that the devices * don't necessarily appear consecutively so we need to check all * possible device names before returning "no device found" error. * This also means if "/dev/hfi1_0" doesn't exist but other devices * exist, we are still going to see the delay; but that's a rare case. */ glob_t glob_buf; if ((glob("/dev/hfi1_[0-9]", 0, NULL, &glob_buf) != 0) && (glob("/dev/hfi1_[0-9][0-9]", GLOB_APPEND, NULL, &glob_buf) != 0)) { FI_INFO(&psmx_prov, FI_LOG_CORE, "no hfi1 device is found.\n"); return -FI_ENODATA; } globfree(&glob_buf); } if (psm_ep_num_devunits(&cnt) || !cnt) { FI_INFO(&psmx_prov, FI_LOG_CORE, "no PSM device is found.\n"); return -FI_ENODATA; } src_addr = calloc(1, sizeof(*src_addr)); if (!src_addr) { FI_INFO(&psmx_prov, FI_LOG_CORE, "failed to allocate src addr.\n"); return -FI_ENODATA; } src_addr->signature = 0xFFFF; src_addr->unit = PSMX_DEFAULT_UNIT; src_addr->port = PSMX_DEFAULT_PORT; src_addr->service = PSMX_ANY_SERVICE; if (flags & FI_SOURCE) { if (node) sscanf(node, "%*[^:]:%" SCNi8 ":%" SCNu8, &src_addr->unit, &src_addr->port); if (service) sscanf(service, "%" SCNu32, &src_addr->service); FI_INFO(&psmx_prov, FI_LOG_CORE, "node '%s' service '%s' converted to <unit=%d, port=%d, service=%d>\n", node, service, src_addr->unit, src_addr->port, src_addr->service); } else if (node) { psm_uuid_t uuid; psmx_get_uuid(uuid); struct util_ns ns = { .port = psmx_uuid_to_port(uuid), .name_len = sizeof(*dest_addr), .service_len = sizeof(svc), .service_cmp = psmx_ns_service_cmp, .is_service_wildcard = psmx_ns_is_service_wildcard, }; ofi_ns_init(&ns); if (service) svc = atoi(service); svc0 = svc; dest_addr = (psm_epid_t *)ofi_ns_resolve_name(&ns, node, &svc); if (dest_addr) { FI_INFO(&psmx_prov, FI_LOG_CORE, "'%s:%u' resolved to <epid=%"PRIu64">:%u\n", node, svc0, *dest_addr, svc); } else { FI_INFO(&psmx_prov, FI_LOG_CORE, "failed to resolve '%s:%u'.\n", node, svc); err = -FI_ENODATA; goto err_out; } } if (hints) { switch (hints->addr_format) { case FI_FORMAT_UNSPEC: case FI_ADDR_PSMX: break; default: FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->addr_format=%d, supported=%d,%d.\n", hints->addr_format, FI_FORMAT_UNSPEC, FI_ADDR_PSMX); goto err_out; } if (hints->ep_attr) { switch (hints->ep_attr->protocol) { case FI_PROTO_UNSPEC: case FI_PROTO_PSMX: break; default: FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->protocol=%d, supported=%d %d\n", hints->ep_attr->protocol, FI_PROTO_UNSPEC, FI_PROTO_PSMX); goto err_out; } if (hints->ep_attr->tx_ctx_cnt > 1 && hints->ep_attr->tx_ctx_cnt != FI_SHARED_CONTEXT) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->ep_attr->tx_ctx_cnt=%"PRIu64", supported=0,1\n", hints->ep_attr->tx_ctx_cnt); goto err_out; } if (hints->ep_attr->rx_ctx_cnt > 1) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->ep_attr->rx_ctx_cnt=%"PRIu64", supported=0,1\n", hints->ep_attr->rx_ctx_cnt); goto err_out; } } if (hints->tx_attr) { if ((hints->tx_attr->op_flags & PSMX_OP_FLAGS) != hints->tx_attr->op_flags) { uint64_t psmx_op_flags = PSMX_OP_FLAGS; PSMX_INFO_DIFF("hints->tx_attr->of_flags", hints->tx_attr->op_flags, psmx_op_flags, FI_TYPE_OP_FLAGS); goto err_out; } if (hints->tx_attr->inject_size > PSMX_INJECT_SIZE) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->tx_attr->inject_size=%"PRIu64"," "supported=%d.\n", hints->tx_attr->inject_size, PSMX_INJECT_SIZE); goto err_out; } } if (hints->rx_attr && (hints->rx_attr->op_flags & PSMX_OP_FLAGS) != hints->rx_attr->op_flags) { uint64_t psmx_op_flags = PSMX_OP_FLAGS; PSMX_INFO_DIFF("hints->rx_attr->of_flags", hints->rx_attr->op_flags, psmx_op_flags, FI_TYPE_OP_FLAGS); goto err_out; } if ((hints->caps & FI_TAGGED) || ((hints->caps & FI_MSG) && !psmx_env.am_msg)) { if ((hints->mode & FI_CONTEXT) != FI_CONTEXT) { uint64_t psmx_mode = FI_CONTEXT; PSMX_INFO_DIFF("hints->mode", hints->mode, psmx_mode, FI_TYPE_MODE); goto err_out; } } else { mode = 0; } if (hints->domain_attr) { switch (hints->domain_attr->av_type) { case FI_AV_UNSPEC: case FI_AV_MAP: case FI_AV_TABLE: av_type = hints->domain_attr->av_type; break; default: FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->domain_attr->av_type=%d, supported=%d %d %d\n", hints->domain_attr->av_type, FI_AV_UNSPEC, FI_AV_MAP, FI_AV_TABLE); goto err_out; } if (hints->domain_attr->mr_mode == FI_MR_BASIC) { mr_mode = FI_MR_BASIC; } else if (hints->domain_attr->mr_mode == FI_MR_SCALABLE) { mr_mode = FI_MR_SCALABLE; } else if (hints->domain_attr->mr_mode & (FI_MR_BASIC | FI_MR_SCALABLE)) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->domain_attr->mr_mode has FI_MR_BASIC or FI_MR_SCALABLE " "combined with other bits\n"); goto err_out; } switch (hints->domain_attr->threading) { case FI_THREAD_UNSPEC: break; case FI_THREAD_FID: case FI_THREAD_ENDPOINT: case FI_THREAD_COMPLETION: case FI_THREAD_DOMAIN: threading = hints->domain_attr->threading; break; default: FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->domain_attr->threading=%d, supported=%d %d %d %d %d\n", hints->domain_attr->threading, FI_THREAD_UNSPEC, FI_THREAD_FID, FI_THREAD_ENDPOINT, FI_THREAD_COMPLETION, FI_THREAD_DOMAIN); goto err_out; } switch (hints->domain_attr->control_progress) { case FI_PROGRESS_UNSPEC: break; case FI_PROGRESS_MANUAL: case FI_PROGRESS_AUTO: control_progress = hints->domain_attr->control_progress; break; default: FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->domain_attr->control_progress=%d, supported=%d %d %d\n", hints->domain_attr->control_progress, FI_PROGRESS_UNSPEC, FI_PROGRESS_MANUAL, FI_PROGRESS_AUTO); goto err_out; } switch (hints->domain_attr->data_progress) { case FI_PROGRESS_UNSPEC: break; case FI_PROGRESS_MANUAL: case FI_PROGRESS_AUTO: data_progress = hints->domain_attr->data_progress; break; default: FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->domain_attr->data_progress=%d, supported=%d %d %d\n", hints->domain_attr->data_progress, FI_PROGRESS_UNSPEC, FI_PROGRESS_MANUAL, FI_PROGRESS_AUTO); goto err_out; } if (hints->domain_attr->caps & FI_SHARED_AV) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->domain_attr->caps=%lx, shared AV is unsupported\n", hints->domain_attr->caps); goto err_out; } } if (hints->ep_attr) { if (hints->ep_attr->max_msg_size > PSMX_MAX_MSG_SIZE) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->ep_attr->max_msg_size=%"PRIu64"," "supported=%llu.\n", hints->ep_attr->max_msg_size, PSMX_MAX_MSG_SIZE); goto err_out; } max_tag_value = ofi_max_tag(hints->ep_attr->mem_tag_format); } if (hints->tx_attr) { if ((hints->tx_attr->msg_order & PSMX_MSG_ORDER) != hints->tx_attr->msg_order) { uint64_t psmx_msg_order = PSMX_MSG_ORDER; PSMX_INFO_DIFF("hints->tx_attr->msg_order", hints->tx_attr->msg_order, psmx_msg_order, FI_TYPE_MSG_ORDER); goto err_out; } if ((hints->tx_attr->comp_order & PSMX_COMP_ORDER) != hints->tx_attr->comp_order) { uint64_t psmx_comp_order = PSMX_COMP_ORDER; PSMX_INFO_DIFF("hints->tx_attr->comp_order", hints->tx_attr->comp_order, psmx_comp_order, FI_TYPE_MSG_ORDER); goto err_out; } if (hints->tx_attr->inject_size > PSMX_INJECT_SIZE) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->tx_attr->inject_size=%ld," "supported=%d.\n", hints->tx_attr->inject_size, PSMX_INJECT_SIZE); goto err_out; } if (hints->tx_attr->iov_limit > 1) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->tx_attr->iov_limit=%ld," "supported=1.\n", hints->tx_attr->iov_limit); goto err_out; } if (hints->tx_attr->rma_iov_limit > 1) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->tx_attr->rma_iov_limit=%ld," "supported=1.\n", hints->tx_attr->rma_iov_limit); goto err_out; } } if (hints->rx_attr) { if ((hints->rx_attr->msg_order & PSMX_MSG_ORDER) != hints->rx_attr->msg_order) { uint64_t psmx_msg_order = PSMX_MSG_ORDER; PSMX_INFO_DIFF("hints->rx_attr->msg_order", hints->rx_attr->msg_order, psmx_msg_order, FI_TYPE_MSG_ORDER); goto err_out; } if ((hints->rx_attr->comp_order & PSMX_COMP_ORDER) != hints->rx_attr->comp_order) { uint64_t psmx_comp_order = PSMX_COMP_ORDER; PSMX_INFO_DIFF("hints->rx_attr->comp_order", hints->rx_attr->comp_order, psmx_comp_order, FI_TYPE_MSG_ORDER); goto err_out; } if (hints->rx_attr->iov_limit > 1) { FI_INFO(&psmx_prov, FI_LOG_CORE, "hints->rx_attr->iov_limit=%ld," "supported=1.\n", hints->rx_attr->iov_limit); goto err_out; } } caps = hints->caps; /* TODO: check other fields of hints */ } if (psmx_reserve_tag_bits(&caps, &max_tag_value) < 0) goto err_out; psmx_info = fi_allocinfo(); if (!psmx_info) { err = -FI_ENOMEM; goto err_out; } psmx_info->ep_attr->type = ep_type; psmx_info->ep_attr->protocol = FI_PROTO_PSMX; psmx_info->ep_attr->protocol_version = PSM_VERNO; psmx_info->ep_attr->max_msg_size = PSMX_MAX_MSG_SIZE; psmx_info->ep_attr->max_order_raw_size = PSMX_RMA_ORDER_SIZE; psmx_info->ep_attr->max_order_war_size = PSMX_RMA_ORDER_SIZE; psmx_info->ep_attr->max_order_waw_size = PSMX_RMA_ORDER_SIZE; psmx_info->ep_attr->mem_tag_format = ofi_tag_format(max_tag_value); psmx_info->ep_attr->tx_ctx_cnt = 1; psmx_info->ep_attr->rx_ctx_cnt = 1; psmx_info->domain_attr->threading = threading; psmx_info->domain_attr->control_progress = control_progress; psmx_info->domain_attr->data_progress = data_progress; psmx_info->domain_attr->name = strdup(PSMX_DOMAIN_NAME); psmx_info->domain_attr->resource_mgmt = FI_RM_ENABLED; psmx_info->domain_attr->av_type = av_type; psmx_info->domain_attr->mr_mode = mr_mode; psmx_info->domain_attr->mr_key_size = sizeof(uint64_t); psmx_info->domain_attr->cq_data_size = 4; psmx_info->domain_attr->cq_cnt = 65535; psmx_info->domain_attr->ep_cnt = 65535; psmx_info->domain_attr->tx_ctx_cnt = 1; psmx_info->domain_attr->rx_ctx_cnt = 1; psmx_info->domain_attr->max_ep_tx_ctx = 1; psmx_info->domain_attr->max_ep_rx_ctx = 1; psmx_info->domain_attr->max_ep_stx_ctx = 65535; psmx_info->domain_attr->max_ep_srx_ctx = 0; psmx_info->domain_attr->cntr_cnt = 65535; psmx_info->domain_attr->mr_iov_limit = 65535; psmx_info->domain_attr->caps = PSMX_DOM_CAPS; psmx_info->domain_attr->mode = 0; psmx_info->domain_attr->mr_cnt = 65535; psmx_info->next = NULL; psmx_info->caps = (hints && hints->caps) ? hints->caps : caps; psmx_info->mode = mode; psmx_info->addr_format = FI_ADDR_PSMX; psmx_info->src_addr = src_addr; psmx_info->src_addrlen = sizeof(*src_addr); psmx_info->dest_addr = dest_addr; psmx_info->dest_addrlen = sizeof(*dest_addr); psmx_info->fabric_attr->name = strdup(PSMX_FABRIC_NAME); psmx_info->fabric_attr->prov_name = NULL; psmx_info->fabric_attr->prov_version = PSMX_VERSION; psmx_info->tx_attr->caps = psmx_info->caps; psmx_info->tx_attr->mode = psmx_info->mode; psmx_info->tx_attr->op_flags = (hints && hints->tx_attr && hints->tx_attr->op_flags) ? hints->tx_attr->op_flags : 0; psmx_info->tx_attr->msg_order = PSMX_MSG_ORDER; psmx_info->tx_attr->comp_order = PSMX_COMP_ORDER; psmx_info->tx_attr->inject_size = PSMX_INJECT_SIZE; psmx_info->tx_attr->size = UINT64_MAX; psmx_info->tx_attr->iov_limit = 1; psmx_info->tx_attr->rma_iov_limit = 1; psmx_info->rx_attr->caps = psmx_info->caps; psmx_info->rx_attr->mode = psmx_info->mode; psmx_info->rx_attr->op_flags = (hints && hints->rx_attr && hints->rx_attr->op_flags) ? hints->rx_attr->op_flags : 0; psmx_info->rx_attr->msg_order = PSMX_MSG_ORDER; psmx_info->rx_attr->comp_order = PSMX_COMP_ORDER; psmx_info->rx_attr->total_buffered_recv = ~(0ULL); /* that's how PSM handles it internally! */ psmx_info->rx_attr->size = UINT64_MAX; psmx_info->rx_attr->iov_limit = 1; *info = psmx_info; return 0; err_out: free(dest_addr); free(src_addr); return err; } static void psmx_fini(void) { FI_INFO(&psmx_prov, FI_LOG_CORE, "\n"); if (! --psmx_init_count && psmx_lib_initialized) { /* This function is called from a library destructor, which is called * automatically when exit() is called. The call to psm_finalize() * might cause deadlock if the applicaiton is terminated with Ctrl-C * -- the application could be inside a PSM call, holding a lock that * psm_finalize() tries to acquire. This can be avoided by only * calling psm_finalize() when PSM is guaranteed to be unused. */ if (psmx_active_fabric) { FI_INFO(&psmx_prov, FI_LOG_CORE, "psmx_active_fabric != NULL, skip psm_finalize\n"); } else { psm_finalize(); psmx_lib_initialized = 0; } } }