Malcolm & others, problem solved OK, only by using -dusty flag in compiling.... I did'nt realize that it would ha ve that effect :).. I'm trying NAGWare f95 now and have had some success of compiling and running geophysical modelling programs,,, Although I got guite o alot of errors like: *** Arithmetic exception: Floating divide by zero - aborting In HSMD_KER, line 4218 of Airbeo_m.f90 Called by HSMD_HNK, line 4113 of Airbeo_m.f90 Called by HSMD_FD, line 4045 of Airbeo_m.f90 Called by HSBOSS_FD, line 3949 of Airbeo_m.f90 Called by GET_FWD_MODL, line 3765 of Airbeo_m.f90 Called by FORJAC, line 3711 of Airbeo_m.f90 Called by NLSQ2, line 4591 of Airbeo_m.f90 Called by AIRBEO, line 2218 of Airbeo_m.f90 Called by MAIN, line 1884 of Airbeo_m.f90 Abort [gefmac1:~/amira/Airbeo] jlerssi% f95 -O0 -g -gline -dusty Airbeo_m.f90 Programs should be "well checked" standard fortran90 -code. And they are known to behave well when compiled by Lahey and/or digital -fortran90 compilers in PC. Is Nagware compiler more sensitive to that kind of exceptions or am I again missing some flag ? or is it somehow platform specific? Is there any MAnual of Nagware -compiler? all I got is man page in html mode... 17.12.2004 kello 04:45, Malcolm Cohen kirjoitti: Richard E Maine said: >> But allow me to point you to the NAG compiler's -dusty switch. If you >> have > > Yes, that is the right solution. > >> a fairly recent version of the compiler, -dusty allows the above >> equivalences. I think this was new to version 5.x. > > No. It has been present for a long time. > >> most compilers accept it - NAG's was probably in the minority in not >> having a way to accept it (until v5.x). > > Actually, we accepted it in release 2.0b, back in 1993. > So we have had it for over a decade ... > > Cheers, > -- > ...........................Malcolm Cohen, NAG Ltd., Oxford, U.K. > ([log in to unmask]) > > _______________________________________________________________________ > _ > This e-mail has been scanned for all viruses by Star. The > service is powered by MessageLabs. For more information on a proactive > anti-virus service working around the clock, around the globe, visit: > http://www.star.net.uk > _______________________________________________________________________ > _ >