GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
sc::RDMAMemoryGrp(3) MPQC sc::RDMAMemoryGrp(3)

sc::RDMAMemoryGrp - The RDMAMemoryGrp abstract class specializes the MsgMemoryGrp class.

#include <memrdma.h>

Inherits sc::MsgMemoryGrp.

Inherited by sc::ARMCIMemoryGrp.


RDMAMemoryGrp (const Ref< MessageGrp > &msg)
RDMAMemoryGrp (const Ref< KeyVal > &)
void * localdata ()
Returns a pointer to the local data. void set_localsize (size_t localsize)
Set the size of locally held memory. void * obtain_writeonly (distsize_t offset, int size)
This gives write access to the memory location. No locking is done. void * obtain_readwrite (distsize_t offset, int size)
Only one thread can have an unreleased obtain_readwrite at a time. void * obtain_readonly (distsize_t offset, int size)
This gives read access to the memory location. No locking is done. void release_readonly (void *data, distsize_t offset, int size)
This is called when read access is no longer needed. void release_writeonly (void *data, distsize_t offset, int size)
This is called when write access is no longer needed. void release_readwrite (void *data, distsize_t offset, int size)
This is called when read/write access is no longer needed. void sum_reduction (double *data, distsize_t doffset, int dsize)
void sum_reduction_on_node (double *data, size_t doffset, int dsize, int node=-1)
void print (std::ostream &o=ExEnv::out0()) const
Prints out information about the object.


virtual void retrieve_data (void *, int node, int offset, int size, int lock)=0
virtual void replace_data (void *, int node, int offset, int size, int unlock)=0
virtual void sum_data (double *data, int node, int doffset, int dsize)=0
void * malloc_region (size_t nbyte)
void free_region (void *)


char * data_
std::vector< Pool * > pools_
size_t default_pool_size_

The RDMAMemoryGrp abstract class specializes the MsgMemoryGrp class.

It uses RDMA to implement global shared memory.

Returns a pointer to the local data.

Implements sc::MemoryGrp.

This gives read access to the memory location. No locking is done.

Implements sc::MemoryGrp.

Only one thread can have an unreleased obtain_readwrite at a time. The actual memory region locked can be larger than that requested. If the memory region is already locked this will block. For this reason, data should be held as read/write for as short a time as possible.

Implements sc::MemoryGrp.

This gives write access to the memory location. No locking is done.

Implements sc::MemoryGrp.

Prints out information about the object.

Reimplemented from sc::MemoryGrp.

This is called when read access is no longer needed.

Implements sc::MemoryGrp.

This is called when read/write access is no longer needed. The memory will be unlocked.

Implements sc::MemoryGrp.

This is called when write access is no longer needed.

Implements sc::MemoryGrp.

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::MsgMemoryGrp.

Reimplemented from sc::MemoryGrp.

Reimplemented from sc::MemoryGrp.

Generated automatically by Doxygen for MPQC from the source code.
Tue Jun 7 2022 Version 2.3.1

Search for    or go to Top of page |  Section 3 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.