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IUS 10.2 irun - how to re-run an already compiled snapshot

cubicle82

Under the old 3-step process (ncvlog+ncelab+ncsim), I could compile the testbench once.  Then call ncsim multiple times to run the sim again(without recompiling.)

How do I do that with irun? What are the proper command-line switches?

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  • Hi Stewart,

    Thanks for the quick reply.

    As you said, on the first invocation of irun, I am adding  -elaborate. My working directory is /home/proj/compile. To simulate, irun is expecting the current working directory should be the directory where INCA_libs(/home/proj/compile) are stored. I want to simulate the tests in /home/proj/simulations/test1, /home/proj/simulations/test2... so on.

    Sofar, I was working without UVM. I used to compile and elaborate with IRUN and simulate from /home/proj/simulations/test1, test2... with NCSIM. It works. I used NCSIM to simulate because I had the same issue with IRUN as it is expecting to simulate in the directory where INCA_libs residing.

    Now I moved to UVM and I am able to compile with IRUN but while simulating with NCSIM(the old method) there is an error. In my IRUN/NCSIM simulation command I am providing the complete path of hdl.var and cds.lib files.
    "
    ncsim: *W,LIBRUN: Could not load the dynamic library:  ./INCA_libs/irun.lnx8664.10.20.nc/librun
    System ERROR:  ./INCA_libs/irun.lnx8664.10.20.nc/librun.so: cannot open shared object file: No such file or directory or file is not valid ELFCLASS64 library..
    ncsim: *F,FLDRUN: Failed to load dynamic library librun for DPI.
    OSDLERROR:  ./INCA_libs/irun.lnx8664.10.20.nc/librun.so: cannot open shared object file: No such file or directory or file is not valid ELFCLASS64 library..
    FATAL ERROR: NCSIM Simulation exited with error status 512
    "
    If I simulate from compile directory(/home/proj/compile), then it works(with both IRUN and NCSIM).
     
    Regards, Siva
Reply
  • Hi Stewart,

    Thanks for the quick reply.

    As you said, on the first invocation of irun, I am adding  -elaborate. My working directory is /home/proj/compile. To simulate, irun is expecting the current working directory should be the directory where INCA_libs(/home/proj/compile) are stored. I want to simulate the tests in /home/proj/simulations/test1, /home/proj/simulations/test2... so on.

    Sofar, I was working without UVM. I used to compile and elaborate with IRUN and simulate from /home/proj/simulations/test1, test2... with NCSIM. It works. I used NCSIM to simulate because I had the same issue with IRUN as it is expecting to simulate in the directory where INCA_libs residing.

    Now I moved to UVM and I am able to compile with IRUN but while simulating with NCSIM(the old method) there is an error. In my IRUN/NCSIM simulation command I am providing the complete path of hdl.var and cds.lib files.
    "
    ncsim: *W,LIBRUN: Could not load the dynamic library:  ./INCA_libs/irun.lnx8664.10.20.nc/librun
    System ERROR:  ./INCA_libs/irun.lnx8664.10.20.nc/librun.so: cannot open shared object file: No such file or directory or file is not valid ELFCLASS64 library..
    ncsim: *F,FLDRUN: Failed to load dynamic library librun for DPI.
    OSDLERROR:  ./INCA_libs/irun.lnx8664.10.20.nc/librun.so: cannot open shared object file: No such file or directory or file is not valid ELFCLASS64 library..
    FATAL ERROR: NCSIM Simulation exited with error status 512
    "
    If I simulate from compile directory(/home/proj/compile), then it works(with both IRUN and NCSIM).
     
    Regards, Siva
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