.TH "PAPI_flops" 3 "Mon Dec 18 2017" "Version 5.6.0.0" "PAPI" \" -*- nroff -*-

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.SH NAME

PAPI_flops \- 

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Simplified call to get Mflops/s (floating point operation rate), real and processor time\&.  

.SH SYNOPSIS

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.SH "Detailed Description"

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\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

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\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

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\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

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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\&.

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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\&.

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\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

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.SH "Author"

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