Hi again. Ok, we migrated our modifications to 6.6.1, compiled it on the ia64 architecture and it worked :). Ian, thank you very much for your help.
Currently we're experiencing another problem: we are not able to use -Nx option even though we compile our program with -threaded option.
Find the log at the end of this message (notice that -N doesn't appear as one RTS available option).
Thank you very much in advance for the replies.
Regards.
Cristian Perfumo

> ../../ghc-6.6.1/compiler/ghc-inplace ./Main.hs -threaded --make
[1 of 1] Compiling Main             ( ./Main.hs, ./Main.o )
Linking ./Main ...
> ./Main 100 16 1 +RTS -N5
unknown RTS option: -N5

Usage: <prog> <args> [+RTS <rtsopts> | -RTS <args>] ... --RTS <args>

   +RTS    Indicates run time system options follow
   -RTS    Indicates program arguments follow
--RTS    Indicates that ALL subsequent arguments will be given to the
           program (including any of these RTS flags)

The following run time system options are available:

-?       Prints this message and exits; the program is not executed

-K<size> Sets the maximum stack size (default 8M) Egs: -K32k   -K512k
-k<size> Sets the initial thread stack size (default 1k) Egs: -k4k   -k2m

-A<size> Sets the minimum allocation area size (default 256k) Egs: -A1m -A10k
-M<size> Sets the maximum heap size (default unlimited) Egs: -M256k -M1G
-H<size> Sets the minimum heap size (default 0M)   Egs: -H24m -H1G
-m<n>    Minimum % of heap which must be available (default 3%)
-G<n>    Number of generations (default: 2)
-T<n>    Number of steps in younger generations (default: 2)
-c<n>    Auto-enable compaction of the oldest generation when live data is
           at least <n>% of the maximum heap size set with -M (default: 30%)
-c       Enable compaction for all major collections
-I<sec> Perform full GC after <sec> idle time (default: 0.3, 0 == off)

-t<file> One-line GC statistics (default file: <program>.stat)
-s<file> Summary GC statistics (with -Sstderr going to stderr)
-S<file> Detailed GC statistics

-Z       Don't squeeze out update frames on stack overflow
-B       Sound the bell at the start of each garbage collection

-C<secs> Context-switch interval in seconds.
            0 or no argument means switch as often as possible.
            Default: 0.02 sec; resolution is set by -V below.
-V<secs> Master tick interval in seconds.
            This sets the resolution for -C and the profile timer -i.
            Default: 0.02 sec.

-vs       Trace scheduler events (see also -Ds with -debug)
-vt       Time-stamp trace messages

--install-signal-handlers=<yes|no>
            Install signal handlers (default: yes)
-e<size> Size of spark pools (default 100)
-e<n>     Maximum number of outstanding local sparks (default: 4096)

RTS options may also be specified using the GHCRTS environment variable.

Other RTS options may be available for programs compiled a different way.
The GHC User's Guide has full details.

On 4/29/07, Ian Lynagh <igloo@earth.li> wrote:

Hi Cristian,

On Wed, Apr 25, 2007 at 07:00:51PM +0200, Cristian Perfumo wrote:
>
> We've been trying to compile GHC 6.6 on ia64, and although we have
> applied the patch on http://hackage.haskell.org/trac/ghc/ticket/1150 ,
> we still get some mangler errors with "nop 0"s.

As well as the patch attached to that bug report, there were a couple
more patches for IA64 that went in recently. All the patches are in
6.6.1 , so you might have more luck with that.

Thanks
Ian