PMIX\_VALUE\_T(5) OpenPMIx PMIX\_VALUE\_T(5)

*pmix\_value\_t* — Defines a value along with its type

# [SYNTAX](#SYNTAX)

## [C Syntax](#C_Syntax)

```
#include <pmix_common.h>
typedef struct pmix_value {


    pmix_data_type_t type;


    union {


        bool flag;


        uint8_t byte;


        char *string;


        size_t size;


        pid_t pid;


        int integer;


        int8_t int8;


        int16_t int16;


        int32_t int32;


        int64_t int64;


        unsigned int uint;


        uint8_t uint8;


        uint16_t uint16;


        uint32_t uint32;


        uint64_t uint64;


        float fval;


        double dval;


        struct timeval tv;


        time_t time;


        pmix_status_t status;


        pmix_rank_t rank;


        pmix_nspace_t *nspace;


        pmix_proc_t *proc;


        pmix_byte_object_t bo;


        pmix_persistence_t persist;


        pmix_scope_t scope;


        pmix_data_range_t range;


        pmix_proc_state_t state;


        pmix_proc_info_t *pinfo;


        pmix_data_array_t *darray;


        void *ptr;


        pmix_alloc_directive_t adir;


        pmix_resource_block_directive_t rbdir;


        pmix_envar_t envar;


        pmix_coord_t *coord;


        pmix_link_state_t linkstate;


        pmix_job_state_t jstate;


        pmix_topology_t *topo;


        pmix_cpuset_t *cpuset;


        pmix_locality_t locality;


        pmix_geometry_t *geometry;


        pmix_device_type_t devtype;


        pmix_device_t *device;


        pmix_device_distance_t *devdist;


        pmix_endpoint_t *endpoint;


        pmix_data_buffer_t *dbuf;


        pmix_resource_unit_t *resunit;


        pmix_node_pid_t *nodepid;


    } data;
} pmix_value_t;
```

## [Python Syntax](#Python_Syntax)

```
from pmix import *
foo = {'value': value, 'val_type': type}
```

where **type** is the PMIx datatype of **value**, and **value** is the associated value expressed in the appropriate Python form for the specified datatype

# [DESCRIPTION](#DESCRIPTION)

The *pmix\_value\_t* structure is used to represent the value passed to *PMIx\_Put* and retrieved by **PMIx\_Get**, as well as many of the other PMIx functions.

A collection of values may be specified under a single key by passing a *pmix\_value\_t* containing an array of type *pmix\_data\_array\_t*, with each array element containing its own object.

**See also:**

[PMIx\_Initialized(3)](/man/enterprise-packages/openpmix-cuda/PMIx_Initialized.3)

# [Copyright](#Copyright)

2014-2026, OpenPMIx Community

August 5, 2026

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Document: pmix_value_t(5) from openpmix-cuda 6.1.0-r2 (Chainguard OS)
Source: https://github.com/openpmix/openpmix