Greetings; state of Graal support for HSA?

[Ret Trinity]

We just got started trying to use Sumatra on a test partition (we've
previously been using aparapi-lambda; it's a bit buggy and crash-prone).
Sadly, all our attempts to build a JVM have resulted in functional JVMs
with no support for -XX:+GPUOffload (or any of the other switches needed
for Sumatra to work).

We found the February 2015 mailing list archive about Graal pulling support
for HSA, so we used the recommended version of Graal from January 2015 that
is supposed to provide the necessary HSA support for building the
Sumatra/Graal VM:

http://hg.openjdk.java.net/graal/graal/rev/91fee1fab96d

Doing so did not help.  We still have no support for -XX:+GPUOffload
building against that version of Graal.

If anyone could provide us with advice on how to get Sumatra working,
we'd greatly appreciate it.

On a side note, is Sumatra still in active development? The last
commit is from 14 months ago . . . ?