Annotation of /trunk/uoms/src/utils/utilities.upc

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1 :	dalvarez	1	/*****************************************************************************/
2 :			/* */
3 :			/* Copyright (c) 2008, 2009, 2010 */
4 :			/* Computer Architecture Group (CAG) */
5 :			/* University of A Coruña, Spain */
6 :			/* (http://gac.des.udc.es) */
7 :			/* Galicia Supercomputing Center (CESGA) */
8 :			/* (http://www.cesga.es) */
9 :			/* Hewlett-Packard Spain (HP) */
10 :			/* (http://www.hp.es) */
11 :			/* */
12 :			/* This file is part of UPC Operations Microbenchmarking Suite (UOMS). */
13 :			/* */
14 :			/* UOMS is free software: you can redistribute it and/or modify */
15 :			/* it under the terms of the GNU Lesser General Public License as published */
16 :			/* by the Free Software Foundation, either version 3 of the License, or */
17 :			/* (at your option) any later version. */
18 :			/* */
19 :			/* UOMS is distributed in the hope that it will be useful, */
20 :			/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
21 :			/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
22 :			/* GNU Lesser General Public License for more details. */
23 :			/* */
24 :			/* You should have received a copy of the GNU Lesser General Public License */
25 :			/* along with UOMS. If not, see <http://www.gnu.org/licenses/>. */
26 :			/* */
27 :			/*****************************************************************************/
28 :
29 :			/*****************************************************************************/
30 :			/* */
31 :			/* FUNDING: This development has been funded by Hewlett-Packard Spain */
32 :			/* */
33 :			/* Project Name: */
34 :			/* UPCHACO (2008-2011) */
35 :			/* Subproject: */
36 :			/* Improving UPC Usability and Performance in Constellation Systems: */
37 :			/* Implementation/Extensions of UPC Libraries. */
38 :			/* (UPCPU­Project -> UPC Performance and Usability Project) */
39 :			/* */
40 :			/*****************************************************************************/
41 :
42 :			/*****************************************************************************
43 :
44 :			For further documentation, see
45 :
46 :			[1] Files under doc/
47 :
48 :			******************************************************************************/
49 :
50 :			#include "../defines.h"
51 :
52 :			extern int cache_invalidation;
53 :
54 :			/*********************************************
55 :			Utility functions (niters...)
56 :			**********************************************/
57 :
58 :			int niters(int msize)
59 :			{
60 :			/*
61 :			* With cache invalidation the number of buckets will be equal to the number
62 :			* of iterations, resulting in excesive memory consumption. To avoid that
63 :			* the number of iterations will be less than without cache invalidation.
64 :			*/
65 :
66 :			int iters = 0;
67 :			int factor = 1;
68 :
69 :			if(cache_invalidation == 1){
70 :			if (msize <= 16*1024) iters=100;
71 :			else if (msize <= 512*1024) iters=50;
72 :			else if (msize <= 4*1024*1024) iters=25;
73 :			else if (msize <= 16*1024*1024) iters=10;
74 :			else iters=5;
75 :			}
76 :			else{
77 :			if (msize <= 16*1024) iters=1000;
78 :			else if (msize <= 512*1024) iters=500;
79 :			else if (msize <= 4*1024*1024) iters=250;
80 :			else if (msize <= 16*1024*1024) iters=100;
81 :			else iters=50;
82 :			}
83 :
84 :			if(THREADS<16){
85 :			factor=1;
86 :			}
87 :			else if(THREADS<64){
88 :			factor=2;
89 :			}
90 :			else if(THREADS<256){
91 :			factor=3;
92 :			}
93 :			else if(THREADS<1024){
94 :			factor=4;
95 :			}
96 :			else{
97 :			factor=5;
98 :			}
99 :
100 :			if(iters/factor < 1)
101 :			return 1;
102 :			else
103 :			return iters/factor;
104 :
105 :			}
106 :
107 :			/*
108 :			Sets the header type
109 :			*/
110 :			int operation_header(int operation_code){
111 :
112 :			int headertype=0;
113 :
114 :			switch (operation_code) {
115 :			case BROADCAST:
116 :			case SCATTER:
117 :			case GATHER:
118 :			case GATHERALL:
119 :			case EXCHANGE:
120 :			case PERMUTE:
121 :			case MEMGET:
122 :			case MEMPUT:
123 :			case MEMCPY:
124 :			case LMEMGET:
125 :			case LMEMPUT:
126 :			case LMEMCPY:
127 :			#ifdef ASYNC_MEM_TEST
128 :			case AMEMGET:
129 :			case AMEMPUT:
130 :			case AMEMCPY:
131 :			case ALMEMGET:
132 :			case ALMEMPUT:
133 :			case ALMEMCPY:
134 :			#endif
135 :	dalvarez	7	#ifdef ASYNCI_MEM_TEST
136 :			case AIMEMGET:
137 :			case AIMEMPUT:
138 :			case AIMEMCPY:
139 :			case AILMEMGET:
140 :			case AILMEMPUT:
141 :			case AILMEMCPY:
142 :			#endif
143 :	dalvarez	1	case SMEMCPY:
144 :			case MEMMOVE:
145 :			headertype=3;
146 :			break;
147 :			case BARRIER:
148 :			headertype=1;
149 :			break;
150 :			default:
151 :			headertype=2;
152 :			break;
153 :			}
154 :			return headertype;
155 :			}

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