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78 lines
1.8 KiB
Plaintext
78 lines
1.8 KiB
Plaintext
.TH "PAPI_accum" 3 "Wed Jun 25 2025 19:30:48" "Version 7.2.0.0" "PAPI" \" -*- nroff -*-
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.ad l
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.nh
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.SH NAME
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PAPI_accum \- Accumulate and reset counters in an EventSet\&.
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.SH SYNOPSIS
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.br
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.PP
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.SH "Detailed Description"
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.PP
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.PP
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\fBC Interface:\fP
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.RS 4
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#include <\fBpapi\&.h\fP>
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.br
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int \fBPAPI_accum( int EventSet, long_long * values )\fP;
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.RE
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.PP
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These calls assume an initialized PAPI library and a properly added event set\&. \fBPAPI_accum\fP adds the counters of the indicated event set into the array values\&. The counters are zeroed and continue counting after the operation\&. Note the differences between \fBPAPI_read\fP and \fBPAPI_accum\fP, specifically that \fBPAPI_accum\fP resets the values array to zero\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIEventSet\fP an integer handle for a PAPI Event Set as created by \fBPAPI_create_eventset\fP
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.br
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\fI*values\fP an array to hold the counter values of the counting events
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.RE
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.PP
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\fBReturn values\fP
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.RS 4
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\fIPAPI_EINVAL\fP One or more of the arguments is invalid\&.
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.br
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\fIPAPI_ESYS\fP A system or C library call failed inside PAPI, see the errno variable\&.
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.br
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\fIPAPI_ENOEVST\fP The event set specified does not exist\&.
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.RE
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.PP
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\fBExamples:\fP
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.RS 4
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.PP
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.nf
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do_100events( );
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if ( PAPI_read( EventSet, values) != PAPI_OK )
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handle_error( 1 );
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// values[0] now equals 100
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do_100events( );
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if (PAPI_accum( EventSet, values ) != PAPI_OK )
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handle_error( 1 );
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// values[0] now equals 200
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values[0] = \-100;
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do_100events( );
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if (PAPI_accum( EventSet, values ) != PAPI_OK )
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handle_error( 1 );
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// values[0] now equals 0
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.fi
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.PP
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBPAPIF_accum\fP
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.PP
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\fBPAPI_start\fP
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.PP
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\fBPAPI_set_opt\fP
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.PP
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\fBPAPI_reset\fP
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.RE
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.PP
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.SH "Author"
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.PP
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Generated automatically by Doxygen for PAPI from the source code\&.
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