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mpirun needs to know the --path for executable

Description

mpirun was finding the executable in /usr/bin/ rather than ./ on the local node space. mpirun has a --path option to set the first place to look, so we can use that to fix this problem.

API Changes and Justification

Backwards Compatible Changes

  • This change introduces no API changes
  • This change adds new API calls

Backwards Incompatible Changes

  • This change modifies an existing API
  • This change removes an existing API

Review Status

Edited by John Douglas Veitch

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