It appears I forgot to reply all to my original reply...
After looking over the documentation a bit more thoroughly, I think that
what I'm referring to is closer to the layout in the Domain Map section,
rather than putting things on different locales. For instance, there is the
discussion about being able to customize things so that an array is row
major instead of column major, but I don't see any description of how to do
that.
With respect to AoS vs. SoA, I was thinking about customizing the layout of
the struct/record using a domain map. For instance, the code prints an
array of structs in Chapel. It's possible to manually adjust the AoS so
that it is a SoA. However, it would be interesting if I could provide a
layout/domain/domain map that accomplishes this without needing to adjust
Foo itself and instead could just provide an alternate D.
record Foo {
var bar: int;
var baz: int;
}
proc main() {
var n: int = 2;
var D: domain(1) = {1..n};
var foo: [D] Foo;
writeln(foo);
}
On Tue, Jun 14, 2016 at 1:26 PM, Elliot Ronaghan <[email protected]> wrote:
> Hi John,
>
> I'm not entirely sure what you're asking WRT to domains. Domains are a
> first-class language feature, and they are not exclusive to arrays. You
> can definitely use them as a field of a record. I think I'm missing the
> relation to AoS vs. SoA though. Can you say more about how you want to
> use domains?
>
> As far as the cygwin issue: We test cygwin nightly, and that's not a
> familiar issue. I would try doing a `make clobber` in $CHPL_HOME and
> then rebuilding. My best guess is that you might have tried to build
> without all the dependencies and when you did install them the tree was
> left in a weird state?
>
> If that doesn't fix it, can you send me the output of `uname -a` as well
> as `gcc --version`? (You can send that to me off-list since it probably
> won't be of much use/interest to others.)
>
> Elliot
>
> >I was curious if domains only worked for arrays or if they can also be
> used for records. Some people find it an inconvenience to change an array
> of structs to a struct of arrays. I was thinking that the equivalent array
> of records to record of arrays might
> > be more easily accomplished using domains.
> >
> >
> >I was going to test this myself, but I had issues installing with Cygwin.
> At first I just realized that I hadn't installed all the dependencies, but
> I found the doc for Cygwin and think I installed them all. The last time I
> ran make, the tail of the output
> > is below. I see a bunch of these undefined reference to ___ lines.
> >
> >./util/gen/cygwin64.gnu.wide-struct.llvm-none/misc.o:misc.cpp:(.text+0xe5f):
> undefined reference to `Symbol::hasFlag(Flag) const'
> >./util/gen/cygwin64.gnu.wide-struct.llvm-none/misc.o:misc.cpp:(.text+0x1113):
> undefined reference to `FnSymbol::isIterator() const'
> >./util/gen/cygwin64.gnu.wide-struct.llvm-none/misc.o:misc.cpp:(.rdata$.refptr.currentAstLoc[.refptr.currentAstLoc]+0x0):
> undefined reference to `currentAstLoc'
> >collect2: error: ld returned 1 exit status
> >make[2]: *** [Makefile:128:
> /cygdrive/c/chapel/chapel-1.13.0/chapel-1.13.0/bin/cygwin64/chpl.exe] Error
> 1
> >make[1]: *** [Makefile:65: compiler] Error 2
> >make: *** [Makefile:57: comprt] Error 2
> >
> >
>
>
>
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