d82dc7f67f
Added use_hp flag in sshmem/sysv variable to control huge page usage; Added shared_mr sshmem/verbs; Both paraemetes are set in auto. Fix help messages fixed by Igor, reviewed by @miked-mellanox and @alex-mikheev
74 строки
1.6 KiB
C
74 строки
1.6 KiB
C
/*
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* Copyright (c) 2014 Mellanox Technologies, Inc.
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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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#ifndef MCA_SSHMEM_SYSV_EXPORT_H
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#define MCA_SSHMEM_SYSV_EXPORT_H
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#include "oshmem_config.h"
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#include "opal/util/sys_limits.h"
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#include "oshmem/mca/sshmem/sshmem.h"
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BEGIN_C_DECLS
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/**
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* globally exported variable to hold the sysv component.
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*/
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typedef struct mca_sshmem_sysv_component_t {
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/* base component struct */
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mca_sshmem_base_component_t super;
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/* priority for sysv component */
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int priority;
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int use_hp;
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} mca_sshmem_sysv_component_t;
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OSHMEM_MODULE_DECLSPEC extern mca_sshmem_sysv_component_t
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mca_sshmem_sysv_component;
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typedef struct mca_sshmem_sysv_module_t {
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mca_sshmem_base_module_t super;
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} mca_sshmem_sysv_module_t;
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extern mca_sshmem_sysv_module_t mca_sshmem_sysv_module;
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/*
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* Get current huge page size
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*/
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static size_t oshmem_gethugepagesize(void)
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{
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static size_t huge_page_size = 0;
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char buf[256];
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int size_kb;
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FILE *f;
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/* Cache the huge page size value */
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if (huge_page_size == 0) {
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f = fopen("/proc/meminfo", "r");
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if (f != NULL) {
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while (fgets(buf, sizeof(buf), f)) {
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if (sscanf(buf, "Hugepagesize: %d kB", &size_kb) == 1) {
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huge_page_size = size_kb * 1024L;
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break;
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}
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}
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fclose(f);
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}
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if (huge_page_size == 0) {
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huge_page_size = 2 * 1024L *1024L;
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}
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}
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return huge_page_size;
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}
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END_C_DECLS
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#endif /* MCA_SSHMEM_SYSV_EXPORT_H */
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