NAME

sc::MemoryGrpBuf< data_t > - The MemoryGrpBuf class provides access to pieces of the global shared memory that have been obtained with MemoryGrp.

SYNOPSIS

#include <memory.h>

Public Member Functions

MemoryGrpBuf (const Ref< MemoryGrp > &)
Creates a new MemoryGrpBuf given a MemoryGrp reference. data_t * writeonly (distsize_t offset, int length)
Request write only access to global memory at the global address offset and with size length. data_t * readwrite (distsize_t offset, int length)
Request read write access to global memory at the global address offset and with size length. const data_t * readonly (distsize_t offset, int length)
Request read only access to global memory at the global address offset and with size length. data_t * writeonly_on_node (size_t offset, int length, int node=-1)
These behave like writeonly, readwrite, and readonly, except the offset is local to the node specified by node. data_t * readwrite_on_node (size_t offset, int length, int node=-1)
const data_t * readonly_on_node (size_t offset, int length, int node=-1)
void release ()
Release the access to the chunk of global memory that was obtained with writeonly, readwrite, readonly, writeonly_on_node, readwrite_on_node, and readonly_on_node. int length () const
The length of the current bit of memory.

Detailed Description

template<class data_t>

class sc::MemoryGrpBuf< data_t >"The MemoryGrpBuf class provides access to pieces of the global shared memory that have been obtained with MemoryGrp.

MemoryGrpBuf is a template class that is parameterized on data_t. All lengths and offsets of given in terms of sizeof(data_t).

Constructor & Destructor Documentation

template<class data_t > sc::MemoryGrpBuf< data_t >::MemoryGrpBuf (const Ref< MemoryGrp > & grp)

Creates a new MemoryGrpBuf given a MemoryGrp reference. This is a template class parameterized on data_t.

Member Function Documentation

template<class data_t > data_t * sc::MemoryGrpBuf< data_t >::writeonly_on_node (size_t offset, int length, int node = -1)

These behave like writeonly, readwrite, and readonly, except the offset is local to the node specified by node. If node = -1, then the local node is used.

Author

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