System Preprocessors
Tracing the preprocessors

The SysPro package does not by default print out anything, other than severe error messages (Petsc macro SETERRQ) that accompany an abort.

However, you can specify a trace function, which can further be tuned by specifying a trace context.

See SysProDeclareTraceFunction(), SysProDeclareTraceContext(), SysProTraceMessage().