Hi everyone,
I am running into bugs in a multi-locale Chapel program and came across the
following in $CHPL_HOME/STATUS:
- The --gdb flag is only supported for single-locale platforms that
support gdb. Please ask us for help if you want to debug a
multilocale program.
That being said, I would like to know what options I have to debug a
multi-locale Chapel program and how to use these options.
The specific problems I think I am encountering in my multi-locale program have
to do with the chpl_comm_get_strd and chpl_comm_put_strd communication calls. I
want to split a single get or put call into multiple calls to conserve memory
on a locale. The following code shows a single call (assuming parameters are
declared beforehand):
//copy remote data to local buffer
__primitive("chpl_comm_get_strd",
__primitive("array_get", dest, buf._value.getDataIndex(1)),
__primitive("array_get",dststr,dstStride._value.getDataIndex(1)),
rid,
__primitive("array_get", src,
arrSection.myElems._value.getDataIndex(myFollowThis.low)),
__primitive("array_get",srcstr,srcStride._value.getDataIndex(1)),
__primitive("array_get",cnt, count._value.getDataIndex(1)),
stridelevels);
with the following semantics:
__primitive("chpl_comm_get_strd",
pointer to source,
source strides,
remote locale id,
pointer to destination,
destination strides,
copy length,
number of dimensions
);
Any suggestions or documentation relating to either of these topics would be
helpful.
Aroon Sharma
University of Maryland, Class of 2015
M.S. Computer Engineering
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