there sems to be a little something missing somewhere ;) 
I had similar problems when we started to use GPUs, the cause was an individual configuration overwriting the feature config. 
What does condor_config_val say, it should look somehow similar to this: 
[root@batchg003 ~]# condor_config_val -dump | grep -i gpu
ENVIRONMENT_FOR_AssignedGPUs = GPU_DEVICE_ORDINAL=/(CUDA|OCL)//  CUDA_VISIBLE_DEVICES
ENVIRONMENT_VALUE_FOR_UnAssignedGPUs = 10000
MACHINE_RESOURCE_INVENTORY_GPUs = $(LIBEXEC)/condor_gpu_discovery -properties $(GPU_DISCOVERY_EXTRA)
SLOT_TYPE_1 = GPUs=1, CPUs=2
SLOT_WEIGHT = GPUs
START = (NODE_IS_HEALTHY =?= True) && (StartJobs =?= True) && TARGET.RequestGpus && (RequestRuntime <= 12000)
STARTD_CRON_GPUs_MONITOR_EXECUTABLE = $(LIBEXEC)/condor_gpu_utilization
STARTD_CRON_GPUs_MONITOR_METRICS = SUM:GPUs, PEAK:GPUsMemory
STARTD_CRON_GPUs_MONITOR_MODE = WaitForExit
STARTD_CRON_GPUs_MONITOR_PERIOD = 1
STARTD_CRON_JOBLIST = NODEHEALTH GPUs_MONITOR GPUs_MONITOR
Best
Christoph
-- 
Christoph Beyer
DESY Hamburg
IT-Department
Notkestr. 85
Building 02b, Room 009
22607 Hamburg
phone:+49-(0)40-8998-2317
mail: christoph.beyer@xxxxxxx
Von: "Josef MitlÃhner" <josef.mitlohner@xxxxxx>
An: "htcondor-users" <htcondor-users@xxxxxxxxxxx>
Gesendet: Freitag, 3. April 2020 11:32:48
Betreff: Re: [HTCondor-users] Detecting GPU
Hello everyone,
      I made a task where there was only "condor_gpu_discovery -extra"
      and the output was only "DetectedGPUs = 0". However, when I
      execute the command manually, it returns:
      
       C: \> condor_gpu_discovery -extra
      DetectedGPUs = "CUDA1"
      CUDACapability = 1.2
      CUDAClockMhz = 1402.00
      CUDAComputeUnits = 2
      CUDACoresPerCU = 8
      CUDADeviceName = "GeForce 210"
      CUDADevicePciBusId = "0000: 05: 00.0"
      CUDADeviceUuid = "00000000-0000-0000-0000-000000000000"
      CUDADriverVersion = 6.50
      CUDAECCEnabled = false
      CUDAGlobalMemoryMb = 1024
      CUDARuntimeVersion = 10.20
      
      So in the configuration context, condor_gpu_discovery does not
      have access to any GPU information.
      
      Best regards
      Josef
    
    On 2.4.2020 13:34, Josef MitlÃhner
      wrote:
    
    
      
      Hi,
      
      lspci | grep -i nvidia
      05:00.0 VGA compatible controller: NVIDIA Corporation GT218
      [GeForce 210] (rev a2)
      
      C:\>condor_status -l mitlohner-w764 | grep -i gpu
      DetectedGPUs = 0
      GPUs = 0
      MachineResources = "Cpus Memory Disk Swap GPUs"
      TotalGPUs = 0
      TotalSlotGPUs = 0
      
      Best regards
      Josef
      
      On 2.4.2020 12:45, Beyer, Christoph
        wrote:
      
      
        
        
          hmm,
          
          
          
          what does 
          
          
          
          lspci | grep -i nvidia
          
          
          
          say ? 
          
          
          
          condor_Status should look somehow like this: 
          
          
          
          [root@batchg003 ~]# condor_status -l batchg003 | grep -i
            gpu
            AssignedGPUs = "CUDA0"
            DetectedGPUs = 1
            GPUs = 1
            MachineResources = "Cpus Memory Disk Swap GPUs"
            SlotWeight = GPUs
            Start = (NODE_IS_HEALTHY =?= true) && (StartJobs =?=
            true) && TARGET.RequestGpus &&
            (RequestRuntime <= 12000)
            TotalGPUs = 1
            TotalSlotGPUs = 1
            [root@batchg003 ~]# condor_status -l batchg003 | grep -i
            cuda
            AssignedGPUs = "CUDA0"
            CUDACapability = 6.1
            CUDADeviceName = "GeForce GTX 1080 Ti"
            CUDADevicePciBusId = "0000:65:00.0"
            CUDADeviceUuid = "3f2d719f-7d89-c75c-1a71-94316a2fcd12"
            CUDADriverVersion = 10.2
            CUDAECCEnabled = false
            CUDAGlobalMemoryMb = 11178
            
          
          Best
          
          Christoph
          
          
          
          
            -- 
            Christoph Beyer
            DESY Hamburg
            IT-Department
            
            Notkestr. 85
            Building 02b, Room 009
            22607 Hamburg
            
            phone:+49-(0)40-8998-2317
            mail: 
christoph.beyer@xxxxxxx
          
          
          
          
          
          
          Hi,
              thank you for your reply.
              
              The result is the same. The only change is (after
              installing CUDA pagkage) in the "condor_gpu_disovery
              -properties" listing:
              
              DetectedGPUs="CUDA0"
              CUDACapability=1.2
              CUDADeviceName="GeForce 210"
              CUDADevicePciBusId="0000:05:00.0"
              CUDADeviceUuid="00000000-0000-0000-0000-000000000000"
              CUDADriverVersion=6.50
              CUDAECCEnabled=false
              CUDAGlobalMemoryMb=1024
              CUDARuntimeVersion=10.20
              
              Thanks for help,
              Best regards
              Josef
            
            On 2.4.2020 10:24, Beyer,
              Christoph wrote:
            
            
              
                Hi,
                
                
                
                try 
                
                @use feature : GPUs
                
                @use feature : GPUsMonitor
                
                
                
                The second one is not mandatory of course but you
                  will want it ;) 
                
                
                install the cuda and nvidia-driver pkgs (I think
                  those cone with the cuda pkg though) 
                
                
                
                cuda.x86_64
                
                
                
                Restart the host and check ... 
                
                
                
                Best
                
                christoph
                
                
                
                  -- 
                  Christoph Beyer
                  DESY Hamburg
                  IT-Department
                  
                  Notkestr. 85
                  Building 02b, Room 009
                  22607 Hamburg
                  
                  phone:+49-(0)40-8998-2317
                  mail: 
christoph.beyer@xxxxxxx
                
                
                
                
                
                
                Hello,
                   when I run the
                    command "condor_gpu_discovery -properties" on my
                    computer it detects one GPU
                    
                    DetectedGPUs="CUDA0"
                    can't open SOFTWARE\NVIDIA Corporation\GPU Computing
                    Toolkit\CUDA
                    CUDACapability=1.2
                    CUDADeviceName="GeForce 210"
                    CUDADevicePciBusId="0000:05:00.0"
CUDADeviceUuid="00000000-0000-0000-0000-000000000000"
                    CUDADriverVersion=6.50
                    CUDAECCEnabled=false
                    CUDAGlobalMemoryMb=1024
                    
                    In condor.config i have a line with "use feature :
                    GPUs"
                    
                    
                    Why does my HTCondor server say (condor_status -l):
                    ...
                    DetectedGPUs = 0
                    ...
                    
                    ?
                    Thank you for reply
                    Josef
                    
                  
                  
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