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.TH "PAPI_set_multiplex" 3 "Mon Dec 18 2017" "Version 5.6.0.0" "PAPI" \" -*- nroff -*-
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.ad l
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.nh
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.SH NAME
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PAPI_set_multiplex \-
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.PP
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Convert a standard event set to a multiplexed event set\&.
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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_set_multiplex( int EventSet )\fP;
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.RE
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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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.RE
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\fBReturn values:\fP
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.RS 4
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\fIPAPI_OK\fP
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.br
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\fIPAPI_EINVAL\fP -- One or more of the arguments is invalid, or the EventSet is already multiplexed\&.
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.br
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\fIPAPI_ENOCMP\fP -- The EventSet specified is not yet bound to a component\&.
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.br
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\fIPAPI_ENOEVST\fP -- The EventSet specified does not exist\&.
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.br
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\fIPAPI_EISRUN\fP -- The EventSet is currently counting events\&.
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.br
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\fIPAPI_ENOMEM\fP -- Insufficient memory to complete the operation\&.
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.RE
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.PP
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\fBPAPI_set_multiplex\fP converts a standard PAPI event set created by a call to \fBPAPI_create_eventset\fP into an event set capable of handling multiplexed events\&. This must be done after calling \fBPAPI_multiplex_init\fP, and either \fBPAPI_add_event\fP or \fBPAPI_assign_eventset_component\fP, but prior to calling \fBPAPI_start()\fP\&.
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.PP
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Events can be added to an event set either before or after converting it into a multiplexed set, but the conversion must be done prior to using it as a multiplexed set\&.
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.PP
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\fBNote:\fP
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.RS 4
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Multiplexing can't be enabled until PAPI knows which component is targeted\&. Due to the late binding nature of PAPI event sets, this only happens after adding an event to an event set or explicitly binding the component with a call to \fBPAPI_assign_eventset_component\fP\&.
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.RE
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.PP
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\fBExample:\fP
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.RS 4
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.nf
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* int EventSet = PAPI_NULL;
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* int ret;
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*
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* // Create an empty EventSet
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* ret = PAPI_create_eventset(&EventSet);
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* if (ret != PAPI_OK) handle_error(ret);
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*
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* // Bind it to the CPU component
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* ret = PAPI_assign_eventset_component(EventSet, 0);
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* if (ret != PAPI_OK) handle_error(ret);
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*
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* // Check current multiplex status
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* ret = PAPI_get_multiplex(EventSet);
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* if (ret == TRUE) printf("This event set is ready for multiplexing\n\&.")
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* if (ret == FALSE) printf("This event set is not enabled for multiplexing\n\&.")
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* if (ret < 0) handle_error(ret);
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*
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* // Turn on multiplexing
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* ret = PAPI_set_multiplex(EventSet);
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* if ((ret == PAPI_EINVAL) && (PAPI_get_multiplex(EventSet) == TRUE))
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* printf("This event set already has multiplexing enabled\n");
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* else if (ret != PAPI_OK) handle_error(ret);
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*
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.fi
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.RE
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\fBSee Also:\fP
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.RS 4
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\fBPAPI_multiplex_init\fP
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.PP
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\fBPAPI_get_multiplex\fP
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.PP
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\fBPAPI_set_opt\fP
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.PP
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\fBPAPI_create_eventset\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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