libsc 2.8.5.210-64a7
The SC library provides support for parallel scientific applications.
sc_flops.h
1/*
2 This file is part of the SC Library.
3 The SC Library provides support for parallel scientific applications.
4
5 Copyright (C) 2010 The University of Texas System
6 Additional copyright (C) 2011 individual authors
7
8 The SC Library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 2.1 of the License, or (at your option) any later version.
12
13 The SC Library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public
19 License along with the SC Library; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 02110-1301, USA.
22*/
23
24#ifndef SC_FLOPS_H
25#define SC_FLOPS_H
26
27#include <sc.h>
28
29SC_EXTERN_C_BEGIN;
30
31typedef struct sc_flopinfo
32{
33 double seconds; /* current time from sc_MPI_Wtime */
34
35 /* these variables measure onward from from sc_flops_start */
36 double cwtime; /* cumulative wall time */
37 float crtime; /* cumulative real time */
38 float cptime; /* cumulative process time */
39 long long cflpops; /* cumulative floating point operations */
40
41 /* measure since sc_flops_start or the previous sc_flops_count */
42 double iwtime; /* interval wall time */
43 float irtime; /* interval real time */
44 float iptime; /* interval process time */
45 long long iflpops; /* interval floating point operations */
46 float mflops; /* MFlop/s rate in this interval */
47
48 /* without SC_PAPI only seconds, ?wtime and ?rtime are meaningful */
49 int use_papi;
50}
52
61void sc_flops_papi (float *rtime, float *ptime,
62 long long *flpops, float *mflops);
63
71void sc_flops_start (sc_flopinfo_t * fi);
72
80void sc_flops_start_nopapi (sc_flopinfo_t * fi);
81
90void sc_flops_count (sc_flopinfo_t * fi);
91
98void sc_flops_snap (sc_flopinfo_t * fi,
99 sc_flopinfo_t * snapshot);
100
110void sc_flops_shot (sc_flopinfo_t * fi,
111 sc_flopinfo_t * snapshot);
112
117void sc_flops_shotv (sc_flopinfo_t * fi, ...);
118
122#define SC_FUNC_SNAP(stat,flop,snap) \
123 do { \
124 if (!sc_statistics_has ((stat), __func__)) { \
125 sc_statistics_add_empty ((stat), __func__); \
126 } \
127 sc_flops_snap ((flop), (snap)); \
128 } while (0)
129
130#define SC_FUNC_SHOT(stat,flop,snap) \
131 do { \
132 sc_flops_shot ((flop), (snap)); \
133 sc_statistics_accumulate ((stat), __func__, (snap)->iwtime); \
134 } while (0)
135
136SC_EXTERN_C_END;
137
138#endif /* !SC_FLOPS_H */
Support for process management (memory allocation, logging, etc.)
Definition: sc_flops.h:32