General Mechanical

General Mechanical

Problem with NVIDIA QUADRO P4000

    • Elia
      Subscriber

      I bought a quadro P4000, but I can't run it with ansys Mechanical. It seems some problem with comunication between ansys and the graphic card. i installed last version of cuda 9.2, but without results. Any ideas?! Here following the message I got from the solver:

      ***** ANSYS COMMAND LINE ARGUMENTS ***** BATCH MODE REQUESTED (-b) = NOLIST INPUT FILE COPY MODE (-c) = COPY DISTRIBUTED MEMORY PARALLEL REQUESTED 10 PARALLEL PROCESSES REQUESTED WITH SINGLE THREAD PER PROCESS TOTAL OF 10 CORES REQUESTED DESIGNXPLORER REQUESTED MPI OPTION = INTELMPI INPUT FILE NAME = C:UsersELIADesktopNuova cartella_ProjectScratchScrC86Bdummy.dat OUTPUT FILE NAME = C:UsersELIADesktopNuova cartella_ProjectScratchScrC86Bsolve.out START-UP FILE MODE = NOREAD STOP FILE MODE = NOREAD GPU ACCELERATOR OPTION REQUESTED 1 GPU ACCELERATOR DEVICES REQUESTED RELEASE= Release 18.0 BUILD= 18.0 UP20161219 VERSION=WINDOWS x64 CURRENT JOBNAME=file0 20:54:17 JUN 09, 2018 CP= 0.203 *** FATAL *** CP = 1.312 TIME= 20:54:18

      No supported GPU devices have been detected on machine ELIAC. Only Tesla-series or Quadro K5000/K5200/K6000/M6000 GPU devices are supported. Please verify that a supported GPU device is installed on this machine or rerun without using the -acc command line option.

      ************************************************************************ The above error is non-recoverable by ANSYS ANSYS run terminated by the indicated error Current data base saved if possible. ************************************************************************


      I installed graphic drivers 397.93 version and cuda 9.2.88.1 version. Is there any driver version that let the graphic card run into solution?



      Thanks in advance

    • peteroznewman
      Subscriber

      It looks like you are running ANSYS 18.0, what version of Windows are you running?


      I checked the tested GPU platform support for 18.0 and under Windows 7, the Quadro 4000 was tested with Mechanical APDL.  That is a different card than a QUADRO P4000.


      There is this note: "ANSYS Mechanical APDL supports NVIDIA's CUDA-enabled Tesla and Quadro series workstation and server cards. When using the sparse solver or eigensolvers based on the sparse solver with NVIDIA cards additional considerations apply (please consult the ANSYS installation guide for details)."


      Under Analysis Settings, try setting the Solver Type to Iterative, then check the Solution Output to make sure it is using the Iterative PCG solver. You can't use the Iterative PCG solver if you have joints in your model, for example. The Iterative solver may work on a GPU where the Direct Sparse solver does not.


      The QUADRO P4000 is on the tested list of graphics adapters for 19.0 This is the list for graphics on the display which is separate from the use of a GPU to acceleration the solving process.


      The tested GPUs for ANSYS 19.1 are only Tesla cards, and only the V100 was tested under Windows Server 2016. Did you consider purchasing that model of GPU?


      Here is a relevant post.

    • Elia
      Subscriber

      I'm running windows 10 pro.... V100 is a little bit expensive for my pocket

    • peteroznewman
      Subscriber

      What happened with you switched to the Iterative solver?


      I did a study on Version 16 on the effect of Tesla K40 GPU on 9 of my structural models. Adding one GPU was worse on 8 of my models compared with adding one more CPU core.

    • sanjay314159265359
      Subscriber

      hello everyone, i am planning to assemble the workstation for ansys( mainly mechanical and simulation ) high load applications with larger models for detailed modelling, for which i have selected the following 


      ryzen 3960x threadripper, 24 cores,3.6 mhz base to  4,5 max,PCIe 4.0, 4 memory channels, 128 gb (16 x 8) ddr4, 3600 mhz ram, 1 tb nvme ssd, however i am confused about the graphic card for gpu acceleration as the choices are very limited for mechanical and also a confusion that do i need two seperate gpu for display and gpu acceleration and how beneficial  is gpu acceleration in combination with above mentioned cpu system. i would welcome any suggestion as the gpu is quite expensive.


      thanks in advance


      regards


      sanjay

    • Rob
      Ansys Employee

      You also need to factor in licencing, will you have access to the University HPC keys?  Is that 12 real & 12 virtual or 24 real cores?  

    • sanjay314159265359
      Subscriber

      thanks, yes i do have access to 24 real cores via an acquaintance/ friend who runs design analysis and validation and will allow me to use 24 real cores for initial work and check the results and bechmark my pc for the applications if needed. the thing that is making me nervous is that i have not been able to find any benchmarks for ryzen 3960x or ryzen 3 series in general. reviews for 2nd generation of ryzen have not been quite encouraging but based on specs things have changed with ryzen 3rd generation. also the considering the price vs specs comparison with dual xeon, i think ryzen 3960x is fair bet. pls share your thoughts.

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