home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.sgi
- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!casbah.acns.nwu.edu!gof
- From: gof@casbah.acns.nwu.edu (Gerald Fountain)
- Subject: Suggestions wanted: Max Optimizations for cc and f77
- Message-ID: <1992Dec15.203438.5897@news.acns.nwu.edu>
- Summary: What would you suggest?
- Sender: Jerry Fountain
- Nntp-Posting-Host: unseen1.acns.nwu.edu
- Organization: Department of Chemical Engineering, Northwestern University
- Date: Tue, 15 Dec 1992 20:34:38 GMT
- Lines: 22
-
- We are recompiling several simulations in used in our group for our new
- Indigo R4k's. Since these programs have runtimes on the order of *days* to
- *weeks*, it pays to maximize the optimizations as much as possible.
-
- Does anyone have any suggestions for this. We are using both cc 3.10 and
- f77 3.10. Current options used are:
-
- cc: -O3 -mips2 -bestGnum (-lmalloc)
- f77: -O3 -mips2 -align64 -bestGnum
-
- Almost all the code is numerical simulations, ie. lots of integration, some
- large matrix work, lots of double precision floating point.
-
- Any and all suggestions welcome.
-
-
-
- --
- Jerry Fountain
- Northwestern University | gof@bart.chem-eng.nwu.edu
- Department of Chemical Engineering | (708) 491-3555 (Office)
- 2145 Sheridan Road, Evanston, IL 60208 | (708) 491-3728 (FAX)
-