arrayfire-python/tests/simple/device.py at dev · arrayfire/arrayfire-python · GitHub

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#!/usr/bin/env python

#######################################################
# Copyright (c) 2019, ArrayFire
# All rights reserved.
#
# This file is distributed under 3-clause BSD license.
# The complete license agreement can be obtained at:
# http://arrayfire.com/licenses/BSD-3-Clause
########################################################

import arrayfire as af

from . import _util


def simple_device(verbose=False):
    display_func = _util.display_func(verbose)
    print_func = _util.print_func(verbose)
    print_func(af.device_info())
    print_func(af.get_device_count())
    print_func(af.is_dbl_supported())
    af.sync()

    curr_dev = af.get_device()
    print_func(curr_dev)
    for k in range(af.get_device_count()):
        af.set_device(k)
        dev = af.get_device()
        assert k == dev

        print_func(af.is_dbl_supported(k))

        af.device_gc()

        mem_info_old = af.device_mem_info()

        a = af.randu(100, 100)
        af.sync(dev)
        mem_info = af.device_mem_info()
        assert mem_info["alloc"]["buffers"] == 1 + mem_info_old["alloc"]["buffers"]
        assert mem_info["lock"]["buffers"] == 1 + mem_info_old["lock"]["buffers"]

    af.set_device(curr_dev)

    a = af.randu(10, 10)
    display_func(a)
    dev_ptr = af.get_device_ptr(a)
    print_func(dev_ptr)
    b = af.Array(src=dev_ptr, dims=a.dims(), dtype=a.dtype(), is_device=True)
    display_func(b)

    c = af.randu(10, 10)
    af.lock_array(c)
    af.unlock_array(c)

    a = af.constant(1, 3, 3)
    b = af.constant(2, 3, 3)
    af.eval(a)
    af.eval(b)
    print_func(a)
    print_func(b)
    c = a + b
    d = a - b
    af.eval(c, d)
    print_func(c)
    print_func(d)

    print_func(af.set_manual_eval_flag(True))
    assert af.get_manual_eval_flag()
    print_func(af.set_manual_eval_flag(False))
    assert not af.get_manual_eval_flag()

    display_func(af.is_locked_array(a))


_util.tests["device"] = simple_device