[ A quick reply is requested because I'd like to use my own portable
computer to give the type error slicing demo at the ML Workshop on
Sunday! ]
I'm trying to use SML/NJ on LPIA (Low Power Intel Architecture)
machines. This is the architecture of the Intel Atom CPU used in many
very small portable computers. I'm using a Dell Inspiron Mini 10
which uses this architecture. My OS is Dell's distribution of Ubuntu
Hardy (8.10) built for “lpia”.
Supposedly i386 code runs unchanged on this architecture and the only
advantage of compiling specifically for this architecture is better
performance (mainly this means using less power). (I don't know if
code compiled for LPIA runs on arbitrary i386 machines or if there are
additional instructions.)
Unfortunately SML/NJ behaves strangely on this architecture. It runs,
but I've seen different behavior:
1. Pressing Control-C (which sends SIGINT to SML/NJ) while running
code from the top-level REPL does not interrupt it. At times
(which I do not precisely remember) pressing Control-C has simply
killed SML/NJ.
2. Some of our code produces different results. I haven't had time to
debug precisely where the difference in behavior is. The code in
question uses timers to control how much time is spent on a
computation, so signals may be involved in the problem.
I've seen this problem with these versions of SML/NJ:
A. SML/NJ 110.65 built for the i386 architecture in Ubuntu Hardy.
(This is not from Dell's Ubuntu Hardy, which does not provide a
“smlnj” package. Instead I downloaded the .deb files and installed
them by hand.)
B. SML/NJ 110.70 built from source on the machine I am using.
Can anyone help?
Is there some way to run a test suite for SML/NJ that might help to
isolate the problem?
Is anyone successfully using SML/NJ on LPIA machines?
Thanks for any help you can provide!
--
With my best regards,
Joe
--
Heriot-Watt University is a Scottish charity
registered under charity number SC000278.
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