/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */ /* * Copyright (c) 2004-2008 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) 2007-2014 Los Alamos National Security, LLC. All rights * reserved. * $COPYRIGHT$ * * Additional copyrights may follow * * $HEADER$ */ /** * @file * * RML Framework maintenence interface * * Interface for starting / stopping / controlling the RML framework, * as well as support for modifying RML datatypes. * * @note The only RML datatype exposed to the user is the RML tag. * This will always be an integral value, so the only datatype support * really required is the internal DSS functions for packing / * unpacking / comparing tags. The user should never need to deal * with these. */ #ifndef MCA_RML_BASE_H #define MCA_RML_BASE_H #include "orte_config.h" #include "opal/dss/dss_types.h" #include "opal/mca/mca.h" #include "orte/runtime/orte_globals.h" #include "orte/mca/rml/rml.h" BEGIN_C_DECLS /* * MCA Framework */ ORTE_DECLSPEC extern mca_base_framework_t orte_rml_base_framework; /* select a component */ ORTE_DECLSPEC int orte_rml_base_select(void); /** * Post receive to get updates regarding contact information * * Post a non-blocking receive (likely during orte_init()) to receive * updated contact information from the HNP when it becomes available. * This should be called in any process that needs such updates, and * the receive will continue to get update callbacks until * orte_rml_base_comm_stop() is called. */ ORTE_DECLSPEC void orte_rml_base_comm_start(void); /** * Stop receiving contact information updates * * Shut down the receive posted during orte_rml_base_comm_start(), * likely during orte_finalize(). */ ORTE_DECLSPEC void orte_rml_base_comm_stop(void); /* a global struct containing framework-level values */ typedef struct { opal_list_t posted_recvs; opal_list_t unmatched_msgs; } orte_rml_base_t; ORTE_DECLSPEC extern orte_rml_base_t orte_rml_base; /** * List of components that are available to the RML * * List of components that are currently available to the RML * framework. Useable between calls to orte_rml_base_open() and * orte_rml_base_close(). * * @note This list should not be used by code outside the RML base. */ ORTE_DECLSPEC extern opal_list_t orte_rml_base_components; /** * Component structure for the selected RML component * * Component structure pointer for the currently selected RML * component. Useable between calls to orte_rml_base_select() and * orte_rml_base_close(). * * @note This pointer should not be used outside the RML base. It is * available outside the RML base only for the F/T component. */ ORTE_DECLSPEC extern orte_rml_component_t *orte_rml_component; /* structure to send RML messages - used internally */ typedef struct { opal_list_item_t super; orte_process_name_t dst; // targeted recipient orte_process_name_t origin; int status; // returned status on send orte_rml_tag_t tag; // targeted tag /* user's send callback functions and data */ union { orte_rml_callback_fn_t iov; orte_rml_buffer_callback_fn_t buffer; } cbfunc; void *cbdata; /* pointer to the user's iovec array */ struct iovec *iov; int count; /* pointer to the user's buffer */ opal_buffer_t *buffer; /* pointer to raw data for cross-transport * transfers */ char *data; } orte_rml_send_t; OBJ_CLASS_DECLARATION(orte_rml_send_t); /* define an object for transferring send requests to the event lib */ typedef struct { opal_object_t super; opal_event_t ev; orte_rml_send_t post; } orte_rml_send_request_t; OBJ_CLASS_DECLARATION(orte_rml_send_request_t); /* structure to recv RML messages - used internally */ typedef struct { opal_list_item_t super; opal_event_t ev; orte_process_name_t sender; // sender orte_rml_tag_t tag; // targeted tag struct iovec iov; // the recvd data } orte_rml_recv_t; OBJ_CLASS_DECLARATION(orte_rml_recv_t); typedef struct { opal_list_item_t super; bool buffer_data; orte_process_name_t peer; orte_rml_tag_t tag; bool persistent; union { orte_rml_callback_fn_t iov; orte_rml_buffer_callback_fn_t buffer; } cbfunc; void *cbdata; } orte_rml_posted_recv_t; OBJ_CLASS_DECLARATION(orte_rml_posted_recv_t); /* define an object for transferring recv requests to the list of posted recvs */ typedef struct { opal_object_t super; opal_event_t ev; bool cancel; orte_rml_posted_recv_t *post; } orte_rml_recv_request_t; OBJ_CLASS_DECLARATION(orte_rml_recv_request_t); #define ORTE_RML_POST_MESSAGE(p, t, b, l) \ do { \ orte_rml_recv_t *msg; \ opal_output_verbose(5, orte_rml_base_framework.framework_output, \ "%s Message posted at %s:%d", \ ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), \ __FILE__, __LINE__); \ msg = OBJ_NEW(orte_rml_recv_t); \ msg->sender.jobid = (p)->jobid; \ msg->sender.vpid = (p)->vpid; \ msg->tag = (t); \ msg->iov.iov_base = (IOVBASE_TYPE*)(b); \ msg->iov.iov_len = (l); \ /* setup the event */ \ opal_event_set(orte_event_base, &msg->ev, -1, \ OPAL_EV_WRITE, \ orte_rml_base_process_msg, msg); \ opal_event_set_priority(&msg->ev, ORTE_MSG_PRI); \ opal_event_active(&msg->ev, OPAL_EV_WRITE, 1); \ } while(0); #define ORTE_RML_ACTIVATE_MESSAGE(m) \ do { \ /* setup the event */ \ opal_event_set(orte_event_base, &(m)->ev, -1, \ OPAL_EV_WRITE, \ orte_rml_base_process_msg, (m)); \ opal_event_set_priority(&(m)->ev, ORTE_MSG_PRI); \ opal_event_active(&(m)->ev, OPAL_EV_WRITE, 1); \ } while(0); #define ORTE_RML_SEND_COMPLETE(m) \ do { \ opal_output_verbose(5, orte_rml_base_framework.framework_output, \ "%s-%s Send message complete at %s:%d", \ ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), \ ORTE_NAME_PRINT(&((m)->dst)), \ __FILE__, __LINE__); \ if (NULL != (m)->iov) { \ if (NULL != (m)->cbfunc.iov) { \ (m)->cbfunc.iov((m)->status, \ &((m)->dst), \ (m)->iov, (m)->count, \ (m)->tag, (m)->cbdata); \ } \ } else { \ /* non-blocking buffer send */ \ (m)->cbfunc.buffer((m)->status, &((m)->origin), \ (m)->buffer, \ (m)->tag, (m)->cbdata); \ } \ OBJ_RELEASE(m); \ }while(0); /* * This is the base priority for a RML wrapper component * If there exists more than one wrapper, then the one with * the lowest priority wins. */ #define RML_SELECT_WRAPPER_PRIORITY -128 /* common implementations */ ORTE_DECLSPEC void orte_rml_base_post_recv(int sd, short args, void *cbdata); ORTE_DECLSPEC void orte_rml_base_process_msg(int fd, short flags, void *cbdata); ORTE_DECLSPEC void orte_rml_base_process_error(int fd, short flags, void *cbdata); /* null functions */ int orte_rml_base_null_send_nb(struct orte_process_name_t* peer, struct iovec* msg, int count, orte_rml_tag_t tag, orte_rml_callback_fn_t cbfunc, void* cbdata); int orte_rml_base_null_send_buffer_nb(struct orte_process_name_t* peer, struct opal_buffer_t* buffer, orte_rml_tag_t tag, orte_rml_buffer_callback_fn_t cbfunc, void* cbdata); void orte_rml_base_null_recv_nb(struct orte_process_name_t* peer, orte_rml_tag_t tag, bool persistent, orte_rml_callback_fn_t cbfunc, void* cbdata); void orte_rml_base_null_recv_buffer_nb(struct orte_process_name_t* peer, orte_rml_tag_t tag, bool persistent, orte_rml_buffer_callback_fn_t cbfunc, void* cbdata); void orte_rml_base_null_recv_cancel(orte_process_name_t* peer, orte_rml_tag_t tag); END_C_DECLS #endif /* MCA_RML_BASE_H */