Hello DC1ers, DC1 is not only a prototype but also a learning tool. I have learned a lesson.
Experienced MPI programmers undoubtedly know that environment variables are not passed through the mpi process startup (run/exec/spawn). The environment used by an mpi process is that which is automatically provided on a user's shell startup (e.g. .cshrc/.bash) on whatever node the mpi process is running. **Some** mpi-varients provide a method to pass such variables on the mpi process startup command. Therefore, the simple-minded method of passing, via an environment variable, the name of the directory containing the current pipeline's policy files needs to be revised in the near future. However, in order to get by the testing crunch next week, we will have the test-bed operator set the name of the aforementioned directory in their startup shell script. Luckily we are only testing a single science pipeline at a time and there is a shared HOME filesystem across the nodes. Robyn _______________________________________________ LSST-data mailing list [email protected] http://www.lsstmail.org/mailman/listinfo/lsst-data
