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#################################################################################
# Copyright (c) 2020, NVIDIA Corporation. All rights reserved. #
# #
# Redistribution and use in source and binary forms, with or without #
# modification, are permitted provided that the following conditions are met: #
# #
# * Redistributions of source code must retain the above copyright notice, #
# this list of conditions and the following disclaimer. #
# * Redistributions in binary form must reproduce the above copyright #
# notice, this list of conditions and the following disclaimer in the #
# documentation and/or other materials provided with the distribution. #
# * Neither the name of the NVIDIA Corporation nor the names of its #
# contributors may be used to endorse or promote products derived from #
# this software without specific prior written permission. #
# #
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" #
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE #
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE #
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE #
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR #
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF #
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS #
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN #
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) #
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF #
# THE POSSIBILITY OF SUCH DAMAGE. #
#################################################################################
#
# Sample script to demonstrate the usage of NVML API python bindings
#
# To Run:
# $ python ./example.py
from pynvml import *
#
# Helper function
#
def StrVirt(mode):
if mode == NVML_GPU_VIRTUALIZATION_MODE_NONE:
return "None";
elif mode == NVML_GPU_VIRTUALIZATION_MODE_PASSTHROUGH:
return "Pass-Through";
elif mode == NVML_GPU_VIRTUALIZATION_MODE_VGPU:
return "VGPU";
elif mode == NVML_GPU_VIRTUALIZATION_MODE_HOST_VGPU:
return "Host VGPU";
elif mode == NVML_GPU_VIRTUALIZATION_MODE_HOST_VSGA:
return "Host VSGA";
else:
return "Unknown";
#
# Converts errors into string messages
#
def handleError(err):
if (err.value == NVML_ERROR_NOT_SUPPORTED):
return "N/A"
else:
return err.__str__()
#######
def deviceQuery():
strResult = ''
try:
#
# Initialize NVML
#
nvmlInit()
strResult += ' <driver_version>' + str(nvmlSystemGetDriverVersion()) + '</driver_version>\n'
deviceCount = nvmlDeviceGetCount()
strResult += ' <attached_gpus>' + str(deviceCount) + '</attached_gpus>\n'
for i in range(0, deviceCount):
handle = nvmlDeviceGetHandleByIndex(i)
pciInfo = nvmlDeviceGetPciInfo(handle)
strResult += ' <gpu id="%s">\n' % pciInfo.busId
strResult += ' <product_name>' + nvmlDeviceGetName(handle) + '</product_name>\n'
brandNames = {NVML_BRAND_UNKNOWN : "Unknown",
NVML_BRAND_QUADRO : "Quadro",
NVML_BRAND_TESLA : "Tesla",
NVML_BRAND_NVS : "NVS",
NVML_BRAND_GRID : "Grid",
NVML_BRAND_TITAN : "Titan",
NVML_BRAND_GEFORCE : "GeForce",
NVML_BRAND_NVIDIA_VAPPS : "NVIDIA Virtual Applications",
NVML_BRAND_NVIDIA_VPC : "NVIDIA Virtual PC",
NVML_BRAND_NVIDIA_VCS : "NVIDIA Virtual Compute Server",
NVML_BRAND_NVIDIA_VWS : "NVIDIA RTX Virtual Workstation",
NVML_BRAND_NVIDIA_CLOUD_GAMING : "NVIDIA Cloud Gaming",
NVML_BRAND_QUADRO_RTX : "Quadro RTX",
NVML_BRAND_NVIDIA_RTX : "NVIDIA RTX",
NVML_BRAND_NVIDIA : "NVIDIA",
NVML_BRAND_GEFORCE_RTX : "GeForce RTX",
NVML_BRAND_TITAN_RTX : "TITAN RTX",
}
try:
# If nvmlDeviceGetBrand() succeeds it is guaranteed to be in the dictionary
brandName = brandNames[nvmlDeviceGetBrand(handle)]
except NVMLError as err:
brandName = handleError(err)
strResult += ' <product_brand>' + brandName + '</product_brand>\n'
try:
serial = nvmlDeviceGetSerial(handle)
except NVMLError as err:
serial = handleError(err)
strResult += ' <serial>' + serial + '</serial>\n'
try:
uuid = nvmlDeviceGetUUID(handle)
except NVMLError as err:
uuid = handleError(err)
strResult += ' <uuid>' + uuid + '</uuid>\n'
strResult += ' <gpu_virtualization_mode>\n'
try:
mode = StrVirt(nvmlDeviceGetVirtualizationMode(handle))
except NVMLError as err:
mode = handleError(err)
strResult += ' <virtualization_mode>' + mode + '</virtualization_mode>\n'
strResult += ' </gpu_virtualization_mode>\n'
try:
gridLicensableFeatures = nvmlDeviceGetGridLicensableFeatures(handle)
if gridLicensableFeatures.isGridLicenseSupported == 1:
strResult += ' <vgpu_software_licensed_product>\n'
for i in range(gridLicensableFeatures.licensableFeaturesCount):
if gridLicensableFeatures.gridLicensableFeatures[i].featureState == 0:
if nvmlDeviceGetVirtualizationMode(handle) == NVML_GPU_VIRTUALIZATION_MODE_PASSTHROUGH:
strResult += ' <licensed_product_name>' + 'NVIDIA Virtual Applications' + '</licensed_product_name>\n'
strResult += ' <license_status>' + 'Licensed' + '</license_status>\n'
else:
strResult += ' <licensed_product_name>' + gridLicensableFeatures.gridLicensableFeatures[i].productName + '</licensed_product_name>\n'
strResult += ' <license_status>' + 'Unlicensed' + '</license_status>\n'
else:
strResult += ' <licensed_product_name>' + gridLicensableFeatures.gridLicensableFeatures[i].productName + '</licensed_product_name>\n'
strResult += ' <license_status>' + 'Licensed' + '</license_status>\n'
strResult += ' </vgpu_software_licensed_product>\n'
except NVMLError as err:
gridLicensableFeatures = handleError(err)
strResult += ' </gpu>\n'
except NVMLError as err:
strResult += 'example.py: ' + err.__str__() + '\n'
nvmlShutdown()
return strResult
# If this is not exectued when module is imported
if __name__ == "__main__":
print(deviceQuery())
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