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5.1 acc_get_num_devices – Get number of devices for given device type

Description
This function returns a value indicating the number of devices available for the device type specified in devicetype.
C/C++:

Prototype: int acc_get_num_devices(acc_device_t devicetype);

Fortran:

Interface: integer function acc_get_num_devices(devicetype)
integer(kind=acc_device_kind) devicetype

Reference:
OpenACC specification v2.0, section 3.2.1.