17f51a0389
Add two new configure options that specify: 1. when to add padding to the openib control header - this *only* happens when the configure option is specified 2. when to use the dr-like checksum as opposed to the memcpy checksum. Not selectable at runtime - to eliminate performance impacts, this is a configure-only option Also removed an unused checksum version from opal/util/crc.h. The new component still needs a little cleanup and some sync with recent ob1 bug fixes. It was created as a separate module to avoid performance hits in ob1 itself, though most of the code is duplicative. The component is only selectable by either specifying it directly, or configuring with the dr-like checksum -and- setting -mca pml_csum_enable_checksum 1. Modify the LANL platform files to take advantage of the new module. This commit was SVN r20846.
84 строки
2.6 KiB
C
84 строки
2.6 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) 2004-2006 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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* $COPYRIGHT$
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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_PML_OB1_COMM_H
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#define MCA_PML_OB1_COMM_H
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#include "opal/threads/mutex.h"
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#include "opal/class/opal_list.h"
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#include "ompi/proc/proc.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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struct mca_pml_csum_comm_proc_t {
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opal_object_t super;
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uint16_t expected_sequence; /**< send message sequence number - receiver side */
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struct ompi_proc_t* ompi_proc;
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#if OMPI_HAVE_THREAD_SUPPORT
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volatile int32_t send_sequence; /**< send side sequence number */
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#else
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int32_t send_sequence; /**< send side sequence number */
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#endif
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opal_list_t frags_cant_match; /**< out-of-order fragment queues */
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opal_list_t specific_receives; /**< queues of unmatched specific receives */
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opal_list_t unexpected_frags; /**< unexpected fragment queues */
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};
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typedef struct mca_pml_csum_comm_proc_t mca_pml_csum_comm_proc_t;
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/**
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* Cached on ompi_communicator_t to hold queues/state
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* used by the PML<->PTL interface for matching logic.
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*/
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struct mca_pml_comm_t {
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opal_object_t super;
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#if OMPI_HAVE_THREAD_SUPPORT
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volatile uint32_t recv_sequence; /**< recv request sequence number - receiver side */
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#else
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uint32_t recv_sequence; /**< recv request sequence number - receiver side */
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#endif
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opal_mutex_t matching_lock; /**< matching lock */
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opal_list_t wild_receives; /**< queue of unmatched wild (source process not specified) receives */
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mca_pml_csum_comm_proc_t* procs;
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size_t num_procs;
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};
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typedef struct mca_pml_comm_t mca_pml_csum_comm_t;
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OBJ_CLASS_DECLARATION(mca_pml_csum_comm_t);
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/**
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* Initialize an instance of mca_pml_csum_comm_t based on the communicator size.
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*
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* @param comm Instance of mca_pml_csum_comm_t
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* @param size Size of communicator
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* @return OMPI_SUCCESS or error status on failure.
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*/
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extern int mca_pml_csum_comm_init_size(mca_pml_csum_comm_t* comm, size_t size);
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif
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