---
name: "PAPI_get_multiplex"
section: "3"
platform: "linux"
package: "libpapi-dev"
version: "7.1.0-5+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/PAPI_get_multiplex"
---

# PAPI\_get\_multiplex(3)

Get the multiplexing status of specified event set.

## NAME

PAPI\_get\_multiplex - Get the multiplexing status of specified event set.

## SYNOPSIS

## Detailed Description

**C Interface:**

\#include \<**papi.h**\> \
\
  int **PAPI\_get\_multiplex( int  EventSet )**;

**Fortran Interface:**

\#include fpapi.h \
\
  **PAPIF\_get\_multiplex( C\_INT  EventSet,  C\_INT  check )**

**Parameters**

*EventSet* an integer handle for a PAPI event set as created by **PAPI\_create\_eventset**

**Return values**

*PAPI\_OK* \
 *PAPI\_EINVAL* One or more of the arguments is invalid, or the EventSet is already multiplexed. \
 *PAPI\_ENOEVST* The EventSet specified does not exist. \
 *PAPI\_EISRUN* The EventSet is currently counting events. \
 *PAPI\_ENOMEM* Insufficient memory to complete the operation.

**PAPI\_get\_multiplex** tests the state of the PAPI\_MULTIPLEXING flag in the specified event set, returning *TRUE* if a PAPI event set is multiplexed, or FALSE if not. \

**Example:**

```
int EventSet = PAPI_NULL;
int ret;
// Create an empty EventSet
ret = PAPI_create_eventset(&EventSet);
if (ret != PAPI_OK) handle_error(ret);
// Bind it to the CPU component
ret = PAPI_assign_eventset_component(EventSet, 0);
if (ret != PAPI_OK) handle_error(ret);
// Check  current multiplex status
ret = PAPI_get_multiplex(EventSet);
if (ret == TRUE) printf("This event set is ready for multiplexing\n.")
if (ret == FALSE) printf("This event set is not enabled for multiplexing\n.")
if (ret < 0) handle_error(ret);
// Turn on multiplexing
ret = PAPI_set_multiplex(EventSet);
if ((ret == PAPI_EINVAL) && (PAPI_get_multiplex(EventSet) == TRUE))
  printf("This event set already has multiplexing enabled\n");
else if (ret != PAPI_OK) handle_error(ret);
```

**See also**

**PAPI\_multiplex\_init**

**PAPI\_set\_opt**

**PAPI\_create\_eventset**

## Author

Generated automatically by Doxygen for PAPI from the source code.