>
>
> All,
>
> Any experience building/running NCAR Graphics 4.3.1 on AMD Opteron
> systems?
>
> The architecture is x86-64, running RedHat Enterprise 3.0 WS for AMD64.
>
> After adding the x86-64 type to the config/ymake file, annd changing
> the -L/usr/X11R6/lib to -L/usr/X11R6/lib64, I was able to build and
> install NCAR Graphics, and much of it works (idt for example seems to
> run fine)
>
> However, using ncargex to compile/run the example programs, the
> executables all give a segmentation fault.
Hi Pete,
I don't have any experience on building on this kind of system, but
from experience, I know that when the code core dumps in the "sybte"
routine, that you need to use a different version of this routine.
To do this, cd to $NCARG/common/src/libncarg_c. You will see three
files, "gsbytes.c", "sbytes.f" and "gbytes.f". Currently, your build
of NCAR Graphics is getting the "sbyte" and "gbyte" routine from the
file "gsbytes.c". You want to instead get these two routines from
"sbytes.f" and "gbytes.f".
To force these two files to get built instead of "gsbytes.c", modify
the "yMakefile" in that directory. You should see some lines that look
like this:
#elif defined(linux) && defined(ia64)
EXCSRCS = bcopyswap.c logic32.c
EXFSRCS = gbytes.f sbytes.f
EXOBJS = sbytes.o gbytes.o bcopyswap.o logic32.o
You can either duplicate these lines just below this section so you
can make changes to the "elif" line, or you can change the "elif" line
directly. Most likely this will involve changing "defined(ia64)" to
whatever internal macro is defined on your system.
When you think have it, save the file, and type (in the same directory):
make me
make clean all install
(The "make me" forces a new "Makefile" to get generated). Watch the
*.o files getting built to make sure that "gsbytes.o" doesn't get
built, and that "sbytes.o" and "gbytes.o" do.
Of course, you can cheat and edit "Makefile" directly to force the
correct files to get built. Just be aware that if you move this code
somewhere else and rerun "make Everything", then your modified
Makefile will get clobbered by a new one.
Once you get "sbytes.o" and "gbytes.o" built, you can try your ncargex
example again. If it still doesn't work, then send me a personal email
message.
Cheers,
--Mary
> Output from gdb shows the fault is occuring in sbytes:
>
> (gdb) run
> Starting program: /decaf1/ncargex/carfill
>
> Program received signal SIGSEGV, Segmentation fault.
> sbyte_ (p=0x65f690, u=0x660560, q=0x7fbfff8200, b=0x6625b0) at gsbytes.c:131
> 131 *t = ((*t >> qb) << qb) + (G1BYTE(*u, jq, qb));
> (gdb) where
> #0 sbyte_ (p=0x65f690, u=0x660560, q=0x7fbfff8200, b=0x6625b0) at gsbytes.c:131
> #1 0x00000000004751ca in sbytes_ (p=0x65f690, u=0x660560, q=0x7fbfff8200, b=0x6625b0, s=0x476f04,
> n=0x7fbfff824c) at gsbytes.c:80
> #2 0x0000000000444069 in gmflod_ (list=0x660560, bits=0x6625b0, count=0x7fbfff8200, gkserr=0x67a788)
> at gmflod.f:76
> #3 0x0000000000443eef in ginlod_ (gkserr=0x67a788) at ginlod.f:64
> #4 0x0000000000438a4a in gputni_ (opcl=0x65f690, opid=0x20, nbytes=0x7fbfff8200,
> gkserr=0xfffffff90000001c) at gputni.f:70
> #5 0x000000000043827f in g01wdr_ (wkid=0x67a788, metanm=0x2cff, __g77_length_metanm=256) at g01wdr.f:440
> #6 0x0000000000435da5 in gztowk_ () at gztowk.f:48
> #7 0x000000000043763d in gzopwk_ (wkid=0x476ee0, conid=0x476ee4, wtype=0x476ee0) at gzopwk.f:159
> #8 0x00000000004306d6 in gopwk_ (wkid=0x65f690, conid=0x20, wtype=0x7fbfff8200) at gopwk.f:27
> #9 0x0000000000403508 in MAIN__ () at carfill.f:57
> #10 0x0000000000476d76 in main ()
>
>
> I notice in gsbytes.c near the top, the code:
>
> #define MASK ( (unsigned) 0xffffffff)
> #define SWORD 32 /* Word size in bits */
> #define G1BYTE(p,q,b) ((unsigned) p << q >> (SWORD - b))
>
>
> doesn't look like it's written for 64 bit systems, but aparently
> that same code is used on sgi, ibm and alpha 64 bit compiles?
>
> Anyone have any experience with NCARG on Opteron systems, or any
> ideas to try?
>
> Output from my 'make everything' can be seen at
>
> http://sysadm.aos.wisc.edu/~poker/ncarg-make-output.txt
>
> gcc version 3.2.3-24 (redhat)
> glibc version glibc-2.3.2-95.6 (redhat)
>
> Thanks,
>
> Pete
>
>
> --
> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>+<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+
> ^ Pete Pokrandt V 1447 AOSS Bldg 1225 W Dayton St^
> ^ Systems Programmer V Madison, WI 53706 ^
> ^ V poker AT unknown ^
> ^ Dept of Atmos & Oceanic Sciences V (608) 262-3086 (Phone/voicemail) ^
> ^ University of Wisconsin-Madison V 262-0166 (Fax) ^
> +<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>+
>
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