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openmpi/ompi/mca/common/cuda/common_cuda.h
Nathan Hjelm cf377db823 MCA/base: Add new MCA variable system
Features:
 - Support for an override parameter file (openmpi-mca-param-override.conf).
   Variable values in this file can not be overridden by any file or environment
   value.
 - Support for boolean, unsigned, and unsigned long long variables.
 - Support for true/false values.
 - Support for enumerations on integer variables.
 - Support for MPIT scope, verbosity, and binding.
 - Support for command line source.
 - Support for setting variable source via the environment using
   OMPI_MCA_SOURCE_<var name>=source (either command or file:filename)
 - Cleaner API.
 - Support for variable groups (equivalent to MPIT categories).

Notes:
 - Variables must be created with a backing store (char **, int *, or bool *)
   that must live at least as long as the variable.
 - Creating a variable with the MCA_BASE_VAR_FLAG_SETTABLE enables the use of
   mca_base_var_set_value() to change the value.
 - String values are duplicated when the variable is registered. It is up to
   the caller to free the original value if necessary. The new value will be
   freed by the mca_base_var system and must not be freed by the user.
 - Variables with constant scope may not be settable.
 - Variable groups (and all associated variables) are deregistered when the
   component is closed or the component repository item is freed. This
   prevents a segmentation fault from accessing a variable after its component
   is unloaded.
 - After some discussion we decided we should remove the automatic registration
   of component priority variables. Few component actually made use of this
   feature.
 - The enumerator interface was updated to be general enough to handle
   future uses of the interface.
 - The code to generate ompi_info output has been moved into the MCA variable
   system. See mca_base_var_dump().

opal: update core and components to mca_base_var system
orte: update core and components to mca_base_var system
ompi: update core and components to mca_base_var system

This commit also modifies the rmaps framework. The following variables were
moved from ppr and lama: rmaps_base_pernode, rmaps_base_n_pernode,
rmaps_base_n_persocket. Both lama and ppr create synonyms for these variables.

This commit was SVN r28236.
2013-03-27 21:09:41 +00:00

74 строки
3.4 KiB
C

/*
* Copyright (c) 2004-2006 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) 2004-2006 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2011 NVIDIA Corporation. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OMPI_MCA_COMMON_CUDA_H
#define OMPI_MCA_COMMON_CUDA_H
#include "ompi/mca/btl/btl.h"
#define MEMHANDLE_SIZE 8
#define EVTHANDLE_SIZE 8
struct mca_mpool_common_cuda_reg_t {
mca_mpool_base_registration_t base;
uint64_t memHandle[MEMHANDLE_SIZE];
uint64_t evtHandle[EVTHANDLE_SIZE];
uint64_t event;
};
typedef struct mca_mpool_common_cuda_reg_t mca_mpool_common_cuda_reg_t;
OMPI_DECLSPEC int mca_common_cuda_register_mca_variables(void);
OMPI_DECLSPEC void mca_common_cuda_register(void *ptr, size_t amount, char *msg);
OMPI_DECLSPEC void mca_common_cuda_unregister(void *ptr, char *msg);
OMPI_DECLSPEC void mca_common_wait_stream_synchronize(mca_mpool_common_cuda_reg_t *rget_reg);
OMPI_DECLSPEC int mca_common_cuda_memcpy(void *dst, void *src, size_t amount, char *msg,
struct mca_btl_base_descriptor_t *, int *done);
OMPI_DECLSPEC int mca_common_cuda_record_ipc_event(char *msg,
struct mca_btl_base_descriptor_t *frag);
OMPI_DECLSPEC int mca_common_cuda_record_dtoh_event(char *msg,
struct mca_btl_base_descriptor_t *frag);
OMPI_DECLSPEC int mca_common_cuda_record_htod_event(char *msg,
struct mca_btl_base_descriptor_t *frag);
OMPI_DECLSPEC void *mca_common_cuda_get_dtoh_stream(void);
OMPI_DECLSPEC void *mca_common_cuda_get_htod_stream(void);
OMPI_DECLSPEC int progress_one_cuda_ipc_event(struct mca_btl_base_descriptor_t **);
OMPI_DECLSPEC int progress_one_cuda_dtoh_event(struct mca_btl_base_descriptor_t **);
OMPI_DECLSPEC int progress_one_cuda_htod_event(struct mca_btl_base_descriptor_t **);
OMPI_DECLSPEC int mca_common_cuda_memhandle_matches(mca_mpool_common_cuda_reg_t *new_reg,
mca_mpool_common_cuda_reg_t *old_reg);
OMPI_DECLSPEC void mca_common_cuda_construct_event_and_handle(uint64_t **event, void **handle);
OMPI_DECLSPEC void mca_common_cuda_destruct_event(uint64_t *event);
OMPI_DECLSPEC int cuda_getmemhandle(void *base, size_t, mca_mpool_base_registration_t *newreg,
mca_mpool_base_registration_t *hdrreg);
OMPI_DECLSPEC int cuda_ungetmemhandle(void *reg_data, mca_mpool_base_registration_t *reg);
OMPI_DECLSPEC int cuda_openmemhandle(void *base, size_t size, mca_mpool_base_registration_t *newreg,
mca_mpool_base_registration_t *hdrreg);
OMPI_DECLSPEC int cuda_closememhandle(void *reg_data, mca_mpool_base_registration_t *reg);
#endif /* OMPI_MCA_COMMON_CUDA_H */