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# -----------------------------------------------------------------------
# Copyright: 2010-2017, iMinds-Vision Lab, University of Antwerp
# 2013-2017, CWI, Amsterdam
#
# Contact: astra@astra-toolbox.com
# Website: http://www.astra-toolbox.com/
#
# This file is part of the ASTRA Toolbox.
#
#
# The ASTRA Toolbox is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# The ASTRA Toolbox is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
#
# -----------------------------------------------------------------------
from __future__ import print_function, absolute_import
def _basic_par2d_fp(type):
import astra
import numpy as np
vg = astra.create_vol_geom(2, 32)
pg = astra.create_proj_geom('parallel', 1, 32, [0])
proj_id = astra.create_projector(type, pg, vg)
vol = np.random.rand(2, 32)
(sino_id, sino) = astra.create_sino(vol, proj_id)
astra.data2d.delete(sino_id)
astra.projector.delete(proj_id)
err = np.max(np.abs(sino[0,:] - np.sum(vol,axis=0)))
return err < 1e-6
def _basic_par3d_fp():
import astra
import numpy as np
vg = astra.create_vol_geom(2, 32, 32)
pg = astra.create_proj_geom('parallel3d', 1, 1, 32, 32, [0])
vol = np.random.rand(32, 2, 32)
(sino_id, sino) = astra.create_sino3d_gpu(vol, pg, vg)
astra.data3d.delete(sino_id)
err = np.max(np.abs(sino[:,0,:] - np.sum(vol,axis=1)))
return err < 1e-6
def _basic_par2d():
print("Testing basic CPU 2D functionality... ", end="")
if _basic_par2d_fp('line'):
print("Ok")
return True
else:
print("Error")
return False
def _basic_par2d_cuda():
print("Testing basic CUDA 2D functionality... ", end="")
if _basic_par2d_fp('cuda'):
print("Ok")
return True
else:
print("Error")
return False
def _basic_par3d_cuda():
print("Testing basic CUDA 3D functionality... ", end="")
if _basic_par3d_fp():
print("Ok")
return True
else:
print("Error")
return False
def test_noCUDA():
"""Perform a very basic functionality test, without CUDA"""
ok = _basic_par2d()
if not ok:
raise RuntimeError("Test failed")
def test_CUDA():
"""Perform a very basic functionality test, including CUDA"""
import astra
print("Getting GPU info... ", end="")
print(astra.get_gpu_info())
ok1 = _basic_par2d()
ok2 = _basic_par2d_cuda()
ok3 = _basic_par3d_cuda()
if not (ok1 and ok2 and ok3):
raise RuntimeError("Test failed")
def test():
"""Perform a very basic functionality test"""
import astra
if astra.use_cuda():
test_CUDA()
else:
print("No GPU support available")
test_noCUDA()
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