SCons

SCons and Madagascar

SCons (from Software Construction) is a superior alternative to the classic make utility.

SCons is implemented as a Python script, its "configuration files" (SConstruct files) are also Python scripts. Madagascar uses SCons to compile software, to manage data processing flowing, and to assemble reproducible documents.

• SCons documentation

Data processing flows with rsf.proj

The rsf.proj module provides SCons rules for Madagascar data processing workflows. An example SConstruct file is shown below and can be found in bei/sg/denmark <python> from rsf.proj import *

Fetch('wz.35.H','wz')

Flow('wind','wz.35.H','dd form=native | window n1=400 j1=2 | smooth rect1=3') Plot('wind','pow pow1=2 | grey')

Flow('mute','wind','mutter v0=0.31 half=n') Plot('mute','pow pow1=2 | grey')

Result('denmark','wind mute','SideBySideAniso')

End() </python> Note that SConstruct by itself does not do any job other than setting rules for building different targets. The targets get built when one executes scons on the command line.

Command-line options

Command-line options
Name	Meaning
TIMER	Whether to time execution
CHECKPAR	Whether to check parameters
ENVIRON	Additional environment settings
CLUSTER	Nodes available on a cluster
MPIRUN	mpirun command