gputilttest(1)                                                  gputilttest(1)



NAME
       gputilttest - Test reliability of GPU with repeated runs of Tilt pro-
       gram

SYNOPSIS
       gputilttest [#_of_minutes] [GPU_#]

DESCRIPTION
       gputilttest is a Python script to test the reliability of a GPU for
       computations in IMOD by running Tilt repeatedly and comparing the
       results on each run to the previous run.  Any nonzero difference is
       counted as a failure.  The program alternates between 10 runs with no
       local alignments and 10 runs with local alignments.

       It is important to test a GPU before using it for generating tomograms.
       The GPU should be tested again if it is moved to a new machine, if the
       NVIDIA drivers are changed, or if there is a major upgrade to the oper-
       ating system.

       There are two optional arguments.  The first argument can be used to
       set the number of minutes to run the test; the default is 1 minute,
       which is generally sufficient to flush out problems.  Fractional values
       may be entered.  The second argument is the GPU number, numbered from
       1.  The default is to use the only GPU or the fastest GPU.


FILES
       The program creates a number of files in the current directory, and
       removes all of them when it exits, or when it is interrupted with Ctrl-
       C.



BL3DEMC                              4.5.6                      gputilttest(1)