MPQC 2.3.1
memarmci.h
1//
2// memarmci.h
3// based on memshm.h
4//
5// Copyright (C) 1996 Limit Point Systems, Inc.
6//
7// Author: Curtis Janssen <cljanss@ca.sandia.gov>
8// Maintainer: SNL
9//
10// This file is part of the SC Toolkit.
11//
12// The SC Toolkit is free software; you can redistribute it and/or modify
13// it under the terms of the GNU Library General Public License as published by
14// the Free Software Foundation; either version 2, or (at your option)
15// any later version.
16//
17// The SC Toolkit is distributed in the hope that it will be useful,
18// but WITHOUT ANY WARRANTY; without even the implied warranty of
19// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20// GNU Library General Public License for more details.
21//
22// You should have received a copy of the GNU Library General Public License
23// along with the SC Toolkit; see the file COPYING.LIB. If not, write to
24// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
25//
26// The U.S. Government is granted a limited license as per AL 91-7.
27//
28
29#ifdef __GNUC__
30#pragma interface
31#endif
32
33#ifndef _util_group_memarmci_h
34#define _util_group_memarmci_h
35
36#include <iostream>
37
38#include <util/group/memrdma.h>
39
40namespace sc {
41
45 private:
46 void **all_data_;
47 void init();
48 void finalize();
49 Ref<ThreadLock> armci_lock_;
50 public:
54
55 void set_localsize(size_t);
56
57 void retrieve_data(void *, int node, int offset, int size, int lock);
58 void replace_data(void *, int node, int offset, int size, int unlock);
59 void sum_data(double *data, int node, int doffset, int dsize);
60
61 void sync();
62 void deactivate();
63
64 void* malloc_local(size_t nbyte);
65 void free_local(void *data);
66
67 void print(std::ostream &o = ExEnv::out0()) const;
68};
69
70}
71
72#endif
73
74// Local Variables:
75// mode: c++
76// c-file-style: "CLJ"
77// End:
The ARMCIMemoryGrp concrete class provides an implementation of MsgMemoryGrp.
Definition memarmci.h:44
void sync()
Synchronizes all the nodes.
void print(std::ostream &o=ExEnv::out0()) const
Prints out information about the object.
void set_localsize(size_t)
Set the size of locally held memory.
void * malloc_local(size_t nbyte)
Allocate data that will be accessed locally only.
void deactivate()
Deactivate is called after the memory has been used.
void free_local(void *data)
Free data that was allocated with malloc_local_double.
static std::ostream & out0()
Return an ostream that writes from node 0.
int size(int node)
Returns the amount of memory residing on node.
Definition memory.h:165
distsize_t offset(int node)
Returns the global offset to node's memory.
Definition memory.h:168
The RDMAMemoryGrp abstract class specializes the MsgMemoryGrp class.
Definition memrdma.h:46
A template class that maintains references counts.
Definition ref.h:332

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