PAPI_get_dev_type_attr

NAME

PAPI_get_dev_type_attr -

returns device type attributes

SYNOPSIS

Detailed Description

Return values:

ENOSUPP invalid attribute

Parameters:

handle opaque handle for device, obtained through PAPI_enum_dev_type
attr device type attribute to query
val value of the requested device type attribute

Example:

typedef enum {
PAPI_DEV_TYPE_ATTR__INT_PAPI_ID, // PAPI defined device type id
PAPI_DEV_TYPE_ATTR__INT_VENDOR_ID, // Vendor defined id
PAPI_DEV_TYPE_ATTR__CHAR_NAME, // Vendor name
PAPI_DEV_TYPE_ATTR__INT_COUNT, // Devices of that type and vendor
PAPI_DEV_TYPE_ATTR__CHAR_STATUS, // Status string for the device type
} PAPI_dev_type_attr_e;

typedef enum {
PAPI_DEV_TYPE_ID__CPU, // Device id for CPUs
PAPI_DEV_TYPE_ID__CUDA, // Device id for Nvidia GPUs
PAPI_DEV_TYPE_ID__ROCM, // Device id for AMD GPUs
} PAPI_dev_type_id_e;

void *handle;
int id;
int enum_modifier = PAPI_DEV_TYPE_ENUM__ALL;
while (PAPI_OK == PAPI_enum_dev_type(enum_modifier, &handle)) {
PAPI_get_dev_type_attr(handle, PAPI_DEV_TYPE_ATTR__INT_PAPI_ID, &id);
switch (id) {
case PAPI_DEV_TYPE_ID__CPU:
// query cpu attributes
break;
case PAPI_DEV_TYPE_ID__CUDA:
// query nvidia gpu attributes
break;
case PAPI_DEV_TYPE_ID__ROCM:
// query amd gpu attributes
break;
default: ...
}
}

PAPI_get_dev_type_attr() allows the user to query all device type attributes. It takes a device type handle, returned by PAPI_enum_dev_type, and an attribute to be queried for the device type and returns the attribute value.

See Also:

PAPI_enum_dev_type

PAPI_get_dev_attr

Author

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