[comp.unix.wizards] C Finite Elements?

mike@BRL.ARPA (Mike Muuss) (06/15/88)

Can anybody point me to a Finite Element or Finite Difference code
that runs on UNIX?  I would like to hear about codes that:

(a) have source code available,
(b) are written in C, and
(c) are available to the Government at no cost,

although I'll compromise on (b) and (c) if necessary. A smaller code
that does not do everything for everybody would be fine.  "Research
quality" code (as opposed to "production quality" code) is fine, as
long as there are at least a few test cases that are known to produce
correct results.

I have heard that both Berkeley and Stanford have good codes;  can
anybody give me a point of contact?

My interest is due to our having initiated a project to automaticly
generate and dynamicly refine finite element meshes from complex
geometry modeled with the BRL CAD Package.  After we generate the
meshes, it would be useful to have a FEM code to feed the meshes to
and drive the dynamic refinement with.

If none of you can help me out, we will probably resort to NASTRAN or
ADINA, which may hamper our work on dynamic refinement.

	Best,
	 -Mike

glennrp@BRL.ARPA (WMB) (06/15/88)

Mike,

Presently I have DYNA2D and DYNA3D running in UNIX (both on IRIS
and Alliant, DYNA3D on UNICOS).  They are written in Fortran.

Under the DOD/DOE block funding program, a 2-D large deformation
finite element ALE code is being developed at Livermore by Bob Tipton.
I expect to receive a copy within this FY.  The coding is in C.
A 3-D version is also being developed, to be delivered in FY90, coded
in Fortran.   ...Glenn R-P

rbj@cmr.icst.nbs.gov (Root Boy Jim) (06/24/88)

? From: Mike Muuss <mike@arpa.brl>
? Date: 15 Jun 88 06:23:26 GMT
? Sender: unix-wizards-request@uk.ac.ucl.cs.nss

Uh, Mike, have y'all decided to switch to the UK backwards domain scheme?
And how come the sender is from the UK? Methinks you'll be looking at a
file named /usr/lib/sendmail.cf soon. Have fun, we all do :-)

	(Root Boy) Jim Cottrell	<rbj@icst-cmr.arpa>
	National Bureau of Standards
	Flamer's Hotline: (301) 975-5688
	The opinions expressed are solely my own
	and do not reflect NBS policy or agreement
	Careful with that VAX Eugene!

P.S. I'm adding a US style address for you to the recipients.

jack@swlabs.UUCP (Jack Bonn) (06/25/88)

In article <16278@brl-adm.ARPA> rbj@cmr.icst.nbs.gov (Root Boy Jim) writes:
>                                        Methinks you'll be looking at a
>file named /usr/lib/sendmail.cf soon. Have fun, we all do :-)

Just where does one go to read all the intricacies of sendmail 
configuration?  Please: I'll RTFM if you tell me WITFM (Where is 
the ...).

Does one of the Nutshell guides cover this (having heard good things
about them)?
-- 
Jack Bonn, <> Software Labs, Ltd, Box 451, Easton CT  06612
uunet!swlabs!jack

rbj@cmr.icst.nbs.gov (Root Boy Jim) (06/28/88)

? From: Jack Bonn <jack@swlabs.uucp>
? Date: 25 Jun 88 15:05:34 GMT

? In article <16278@brl-adm.ARPA> rbj@cmr.icst.nbs.gov (Root Boy Jim) writes:
? >                                        Methinks you'll be looking at a
? >file named /usr/lib/sendmail.cf soon. Have fun, we all do :-)

? Just where does one go to read all the intricacies of sendmail 
? configuration?  Please: I'll RTFM if you tell me WITFM (Where is 
? the ...).

SMM:7, Sendmail Installation & Operation Guide. SMM:7 refers to the
System Manager's Manual in 4.3 BSD. The same document was present in
4.2 BSD and is also included with Sun releases in the tutorials.

There is enough information to hack up a given config file, but success
usually depends on having a good one to start with. It is one thing
to modify a config file, another to write one from scratch. The -bt
option provides a reasonable debugging facility.

? Does one of the Nutshell guides cover this (having heard good things
? about them)?

I have no idea. My general feeling is to read the real documentation tho.

? -- 
? Jack Bonn, <> Software Labs, Ltd, Box 451, Easton CT  06612
? uunet!swlabs!jack

	(Root Boy) Jim Cottrell	<rbj@icst-cmr.arpa>
	National Bureau of Standards
	Flamer's Hotline: (301) 975-5688
	The opinions expressed are solely my own
	and do not reflect NBS policy or agreement
	Careful with that VAX Eugene!