.TH "PAPI_flops" 3 "Mon Dec 18 2017" "Version 5.6.0.0" "PAPI" \" -*- nroff -*-
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.SH NAME
PAPI_flops \- 
.PP
Simplified call to get Mflops/s (floating point operation rate), real and processor time\&.  

.SH SYNOPSIS
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.PP
.SH "Detailed Description"
.PP 

.PP
\fBC Interface: \fP
.RS 4
#include <\fBpapi\&.h\fP> 
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int \fBPAPI_flops( float *rtime, float *ptime, long long *flpops, float *mflops )\fP;
.RE
.PP
\fBParameters:\fP
.RS 4
\fI*rtime\fP total realtime since the first call 
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\fI*ptime\fP total process time since the first call 
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\fI*flpops\fP total floating point operations since the first call 
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\fI*mflops\fP incremental (Mega) floating point operations per seconds since the last call
.RE
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\fBReturn values:\fP
.RS 4
\fIPAPI_EINVAL\fP The counters were already started by something other than \fBPAPI_flops()\fP\&. 
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\fIPAPI_ENOEVNT\fP The floating point operations event does not exist\&. 
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\fIPAPI_ENOMEM\fP Insufficient memory to complete the operation\&.
.RE
.PP
The first call to \fBPAPI_flops()\fP will initialize the PAPI High Level interface, set up the counters to monitor the PAPI_FP_OPS event and start the counters\&.
.PP
Subsequent calls will read the counters and return total real time, total process time, total floating point operations since the start of the measurement and the Mflop/s rate since latest call to \fBPAPI_flops()\fP\&. A call to \fBPAPI_stop_counters()\fP will stop the counters from running and then calls such as \fBPAPI_start_counters()\fP or other rate calls can safely be used\&.
.PP
\fBPAPI_flops\fP returns information related to theoretical floating point operations rather than simple instructions\&. It uses the PAPI_FP_OPS event which attempts to 'correctly' account for, e\&.g\&., FMA undercounts and FP Store overcounts, etc\&.
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\fBSee Also:\fP
.RS 4
\fBPAPI_flips()\fP 
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\fBPAPI_ipc()\fP 
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\fBPAPI_epc()\fP 
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\fBPAPI_stop_counters()\fP 
.RE
.PP


.SH "Author"
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Generated automatically by Doxygen for PAPI from the source code\&.