[petsc-users] value of PETSC_ARCH

[Sean Farley]

>
> Hi to install PETSc without the debugging version, what value of PETSC_ARCH
> should I give? Or is this automatically decided by PETSc  during the
> configure sterp?


Anything you like to distinguish the different arches. PETSC_ARCH is just a
unique label so that you can install multiple versions of PETSc without
duplicating the entire source tree.

For example,

$ ls $PETSC_DIR
...
darwin10.5.0-cxx-debug
darwin10.5.0-sieve-debug
darwin10.5.0-cxx-intel
darwin10.5.0-sieve-intel
...

are four different installs (arches) I have with the name of each PETSC_ARCH
reminding me what the difference is between them.

Sean
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