The Chapel Runtime Library¶

Where is it?¶

Sources:

$CHPL_HOME/runtime/src

$CHPL_HOME/runtime/include

Compiled code:

$CHPL_HOME/runtime/src/gen/MORE-DIRS

$CHPL_HOME/lib/MORE-DIRS

MORE-DIRS indicate the various aspects of the configuration

(e.g. which comm/task/threads layers were used, runtime platform, etc.)

See also:: $CHPL_HOME/runtime/README

Compiling¶

Currently you can have only one compilation of the runtime (per configuration) in terms of optimization, debugging support, and profiling:

make DEBUG=1 OPTIMIZE=0   # debug support
make DEBUG=0 OPTIMIZE=1   # optimized
make DEBUG=0 OPTIMIZE=1 PROFILE=1   # profiling support
make DEBUG=0 OPTIMIZE=1 WARNINGS=1  # promote backend C compiler warnings to errors

Debugging¶

See also debugging notes in GeneratedCode.txt.

Examining the source code¶

$CHPL_HOME/runtime/TAGS

generated when you build the runtime

also included in TAGS for a compiled Chapel program