bd995d26b4
- poll FIFO occasionally even if just sending messages - retry pending sends more often - just before trying a new send - as part of mca_btl_sm_component_progress Maintain two new mca_btl_sm_component variables, num_outstanding_frags and num_pending_sends, to keep overhead low. Drain only one message fragment from the FIFO per btl_sm_component_progress call (rather than drain until empty, which in retrospect everyone considers to have been a mistake). This commit was SVN r21551.
48 строки
1.7 KiB
C
48 строки
1.7 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006-2007 Voltaire. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/**
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* @file
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*/
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#ifndef MCA_BTL_SM_ENDPOINT_H
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#define MCA_BTL_SM_ENDPOINT_H
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#if OPAL_ENABLE_PROGRESS_THREADS == 1
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#include "opal/event/event.h"
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#endif
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/**
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* An abstraction that represents a connection to a endpoint process.
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* An instance of mca_ptl_base_endpoint_t is associated w/ each process
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* and BTL pair at startup.
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*/
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struct mca_btl_base_endpoint_t {
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int my_smp_rank; /**< My SMP process rank. Used for accessing
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* SMP specfic data structures. */
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int peer_smp_rank; /**< My peer's SMP process rank. Used for accessing
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* SMP specfic data structures. */
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#if OPAL_ENABLE_PROGRESS_THREADS == 1
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int fifo_fd; /**< pipe/fifo used to signal endpoint that data is queued */
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#endif
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opal_list_t pending_sends; /**< pending data to send */
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};
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void btl_sm_process_pending_sends(struct mca_btl_base_endpoint_t *ep);
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#endif
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