.TH "PAPI_flops_rate" 3 "Mon Feb 24 2025 21:11:21" "Version 7.2.0.0b2" "PAPI" \" -*- nroff -*-
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.SH NAME
PAPI_flops_rate \- 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_rate\fP ( int event, float *rtime, float *ptime, long long *flpops, float *mflops );
.RE
.PP
\fBParameters\fP
.RS 4
\fIevent\fP one of the three presets PAPI_FP_OPS, PAPI_SP_OPS or PAPI_DP_OPS 
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\fI*rtime\fP realtime since the latest call 
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\fI*ptime\fP process time since the latest call 
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\fI*flpops\fP floating point operations since the latest call 
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\fI*mflops\fP incremental (Mega) floating point operations per seconds since the latest call
.RE
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\fBReturn values\fP
.RS 4
\fIPAPI_EINVAL\fP The counters were already started by something other than PAPI_flops_rate()\&. 
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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 PAPI_flops_rate() will initialize the PAPI interface, set up the counters to monitor the floating point operations event and start the counters\&.
.PP
Subsequent calls will read the counters and return real time, process time, floating point operations and the Mflop/s rate since the latest call to PAPI_flops_rate()\&.
.PP
PAPI_flops_rate() returns information related to theoretical floating point operations rather than simple instructions\&. It uses the floating point operations event which attempts to 'correctly' account for, e\&.g\&., FMA undercounts and FP Store overcounts\&. Note that PAPI_flops_rate() is thread-safe and can therefore be called by multiple threads\&.
.PP
\fBSee also\fP
.RS 4
PAPI_flips_rate() 
.PP
PAPI_ipc() 
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PAPI_epc() 
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PAPI_rate_stop() 
.RE
.PP


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