51b2a0fd3f
constrained:
* Make sure we always have a number of eager fragments available
that scales with the number of processes communicating with
a given proc over shared memory
* Use FREE_LIST_GET instead of FREE_LIST_WAIT to return an
error to the PML when resource exhaustion occurs
* Don't dereference the frag during alloc unless we're sure
it's not NULL
Reviewed by: Galen
Refs trac:413
This commit was SVN r12053.
The following Trac tickets were found above:
Ticket 413 --> https://svn.open-mpi.org/trac/ompi/ticket/413
70 строки
2.0 KiB
C
70 строки
2.0 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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* $COPYRIGHT$
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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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#include "ompi_config.h"
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#include "btl_sm_frag.h"
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static inline void mca_btl_sm_frag_constructor(mca_btl_sm_frag_t* frag)
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{
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frag->segment.seg_addr.pval = frag+1;
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frag->segment.seg_len = frag->size;
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frag->base.des_src = &frag->segment;
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frag->base.des_src_cnt = 1;
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frag->base.des_dst = &frag->segment;
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frag->base.des_dst_cnt = 1;
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frag->base.des_flags = 0;
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}
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static void mca_btl_sm_frag1_constructor(mca_btl_sm_frag_t* frag)
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{
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frag->size = mca_btl_sm_component.eager_limit;
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frag->my_list = &mca_btl_sm_component.sm_frags1;
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mca_btl_sm_frag_constructor(frag);
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}
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static void mca_btl_sm_frag2_constructor(mca_btl_sm_frag_t* frag)
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{
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frag->size = mca_btl_sm_component.max_frag_size;
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frag->my_list = &mca_btl_sm_component.sm_frags2;
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mca_btl_sm_frag_constructor(frag);
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}
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static void mca_btl_sm_frag_destructor(mca_btl_sm_frag_t* frag)
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{
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}
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OBJ_CLASS_INSTANCE(
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mca_btl_sm_frag_t,
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mca_btl_base_descriptor_t,
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mca_btl_sm_frag_constructor,
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mca_btl_sm_frag_destructor);
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OBJ_CLASS_INSTANCE(
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mca_btl_sm_frag1_t,
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mca_btl_base_descriptor_t,
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mca_btl_sm_frag1_constructor,
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mca_btl_sm_frag_destructor);
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OBJ_CLASS_INSTANCE(
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mca_btl_sm_frag2_t,
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mca_btl_base_descriptor_t,
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mca_btl_sm_frag2_constructor,
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mca_btl_sm_frag_destructor);
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