Comments

Possible Reduction Operations
In order to get output of reduction values for CCTK_GF and CCTK_ARRAY variables you need to activate a thorn which provides reduction operators (eg. thorn PUGHReduce in the CactusPUGH arrangement). For a list of possible reduction operations please refer to the documention of this reduction thorn.



Getting Output from IOBasic's I/O Mehtods
You obtain output by an I/O method by either

• setting the appropriate I/O parameters
• calling one of the routines of the I/O function interface provided by the flesh

For a description of basic I/O parameters and the I/O function interface to invoke I/O methods by application thorns please see the documentation of thorn IOUtil and the flesh.



Building Cactus configurations with IOBasic
Since IOBasic uses parameters from IOUtil it also needs this I/O helper thorn be compiled into Cactus and activated at runtime in the ActiveThorns parameter in your parameter file.