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# coding: utf-8
# /*##########################################################################
#
# Copyright (C) 2016-2018 European Synchrotron Radiation Facility
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# ###########################################################################*/
__authors__ = ["V. Valls"]
__license__ = "MIT"
__date__ = "16/10/2020"
from silx.gui import qt
try:
import pyopencl
except ImportError:
pyopencl = None
class OpenClDeviceLabel(qt.QLabel):
"""Label displaying a specific OpenCL device.
"""
def __init__(self, parent=None):
super(OpenClDeviceLabel, self).__init__(parent)
self.__device = None
self.__updateDisplay()
def __getOpenClDevice(self, platformId, deviceId):
if pyopencl is None:
return None
if not (0 <= platformId < len(pyopencl.get_platforms())):
return None
platform = pyopencl.get_platforms()[platformId]
if not (0 <= deviceId < len(platform.get_devices())):
return None
return platform.get_devices()[deviceId]
def __updateDisplay(self):
toolTip = ""
if self.__device is None:
label = "No OpenCL device selected"
elif self.__device == "any":
label = "Any available device"
elif self.__device == "cpu":
label = "Any available CPU"
elif self.__device == "gpu":
label = "Any available GPU"
else:
platformId, deviceId = self.__device
device = self.__getOpenClDevice(platformId, deviceId)
if device is not None:
deviceName, platformName = device.name, device.platform.name
else:
deviceName, platformName = None, None
args = {
"deviceName": deviceName,
"deviceId": deviceId,
"platformName": platformName,
"platformId": platformId,
}
if deviceName is None:
labelTemplate = "{deviceId}, {platformId}"
tipTemplate = """
<ul>
<li><b>Platform index</b>: {platformId}</li>
<li><b>Device index</b>: {deviceId}</li>
</ul>
"""
else:
labelTemplate = "{deviceName} ({platformId}, {deviceId})"
tipTemplate = """
<ul>
<li><b>Platform name</b>: {platformName}</li>
<li><b>Platform index</b>: {platformId}</li>
<li><b>Device name</b>: {deviceName}</li>
<li><b>Device index</b>: {deviceId}</li>
</ul>
"""
label = labelTemplate.format(**args)
toolTip = tipTemplate.format(**args)
self.setText(label)
self.setToolTip(toolTip)
def setDevice(self, device):
"""Select an OpenCL device displayed on this dialog.
A device can be identified as a string like 'any', 'cpu' or 'gpu' or a
tuple containing the platform index and the device index.
If this device is available on this platform is is selected in the
list. Else it is selected as a custom indexes.
:param Union[None,str,Tuple[int,int]] device: A device.
"""
self.__device = device
self.__updateDisplay()
def device(self):
"""Returns the selected OpenCL device.
A device can be identified as a string like 'any', 'cpu' or 'gpu' or a
tuple containing the platform index and the device index.
:rtype: Union[None,str,Tuple[int,int]]
:raises ValueError: If no devices are selected
"""
return self.__device
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