sc::armcimemorygrp(3)

NAME

sc::ARMCIMemoryGrp - The ARMCIMemoryGrp concrete class provides an implementation of MsgMemoryGrp.

SYNOPSIS

#include <memarmci.h>
Inherits sc::RDMAMemoryGrp.
Public Member Functions
ARMCIMemoryGrp (const Ref< MessageGrp > &msg)
ARMCIMemoryGrp (const Ref< KeyVal > &)
void set_localsize (size_t)
    Set the size of locally held memory.
void retrieve_data (void *, int node, int offset, int size, int lock)
void replace_data (void *, int node, int offset, int size, int unlock)
void sum_data (double *data, int node, int doffset, int dsize)
void sync ()
    Synchronizes all the nodes.
void deactivate ()
    Deactivate is called after the memory has been used.
void * malloc_local (size_t nbyte)
    Allocate data that will be accessed locally only.
void free_local (void *data)
    Free data that was allocated with malloc_local_double.
void print (std::ostream &o=ExEnv::out0()) const
    Prints out information about the object.

Detailed Description

The ARMCIMemoryGrp concrete class provides an implementation of MsgMemoryGrp.

It uses the ARMCI interface.

Member Function Documentation

void sc::ARMCIMemoryGrp::set_localsize (size_t) [virtual]: Set the size of locally held memory.; When memory is accessed using a global offset counting starts at node 0 and proceeds up to node n() - 1.; Reimplemented from sc::RDMAMemoryGrp.
void sc::ARMCIMemoryGrp::sync () [virtual]: Synchronizes all the nodes.; This is useful after remote memory writes to be certain that all of the writes have completed and the data can be accessed locally, for
example.; Reimplemented from sc::MsgMemoryGrp.
void* sc::ARMCIMemoryGrp::malloc_local (size_t nbyte) [virtual]: Allocate data that will be accessed locally only.; Using this for data that will be used for global operation can improve efficiency. Data allocated in this way must be freed with
free_local_double.; Reimplemented from sc::MemoryGrp.
void sc::ARMCIMemoryGrp::free_local (void * data) [virtual]: Free data that was allocated with malloc_local_double.; Reimplemented from sc::MemoryGrp.

Author

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