[Mitgcm-support] SUN compiler at Scripps

[mitgcm-support at dev.mitgcm.org]

verification/natl_box_adjoint/ 
with ecco_c44_e19 and latest merged code:

- OK under Linux
  (Linux twain.lcs.mit.edu 2.4.7-10 #1 Thu Sep 6 17:27:27 EDT 2001 i686)
- OK on MIT SUN's, e.g. fjord
  (SunOS fjord.mit.edu 5.8 Generic_108528-09 sun4u sparc
SUNW,Sun-Blade-1000)
- NaN's on Scripps SUN's after ~50 timesteps with current compiler
settings
  (SunOS rain.ucsd.edu 5.8 Generic_108528-13 sun4u sparc SUNW,Ultra-80)
- No NaN's on IBM SP3 (blue horizon), but devastating
  gradient checks
NB: code is identical, scp-ed between different platforms

Trouble with "-g" option on Scripps SUN's:

* Using -xtypemap=real:64,double:64,integer:32 with -g:
f77: Warning: illegal option -xtypemap=real:64,double:64,integer:32
ignored
f77: Warning: Optimizer level changed from 0 to 3 to support
parallelized code
f77: Warning: -parallel conflicts with -g. -parallel turned off.
ild: (bad file) Input file /usr/lib/libm.a contains 32-bit relocatable,
but producing a 64-bit file.

* Using -r8 -i4 with -g:
f77: Warning: Use -xtypemap for obsolescent -r8 or -dbl; see f77 man
page.
f77: Warning: Optimizer level changed from 0 to 3 to support
parallelized code
f77: Warning: -parallel conflicts with -g. -parallel turned off.
ild: (bad file) Input file /usr/lib/libm.a contains 32-bit relocatable,
but producing a 64-bit file.

* Switching off -stackvar -explicitpar :
  Note: IEEE floating-point exception flags raised: 
    Inexact;  Underflow;  Invalid Operation; 
  (code goes wild)

-- 
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Patrick Heimbach           Scripps Institution of Oceanography
Tel: +1/858/822-4062   Physical Oceanography Research Division
Fax: +1/858/534-9820                 Nierenberg Hall, Room 445
http://www.sio.ucsd.edu               8605 La Jolla Shores Dr.
mailto:heimbach at fjord.ucsd.edu         La Jolla, CA 92093, USA