Re: [Beowulf] Quick question... on Fortran

2007-05-11 Thread Martin Wheeler
On Sat, 14 Apr 2007, Brian Dobbins wrote: ^^^ > >From one Fortran averse person to another: Brian, your date setting appears to be a month behind everyone else. Cheers, -- Martin Wheeler - 00 44 1458 83-1103Glastonbury - BA6 9PH - England (First introduced to FORTRAN by

Re: [Beowulf] Quick question... on Fortran

2007-05-11 Thread Mark Hahn
The gross 32-bit layout, from bottom to top is: program & data, shared libs & mmap, heap, and stack; with the space between the code/data and shared libs controlled by brk(2). let me offer a brief program and a few more details (not in disagreement): #include #include char static_variable; i

Re: [Beowulf] Quick question... on Fortran

2007-05-11 Thread Lombard, David N
On Thu, May 10, 2007 at 12:01:34PM -0400, Robert G. Brown wrote: > I am (as you may well know) extremely fortran averse. However, a > researcher in our department has recently asked what the current limits > are on the size of an array in modern fortran(s) under linux. I suppose > he'd like an an

Re: [Beowulf] Quick question... on Fortran

2007-05-10 Thread Greg Lindahl
On Thu, May 10, 2007 at 05:57:55PM -0400, Robert G. Brown wrote: > >I don't see much point in having both languages in the same source > >file. > > Me neither, actually. Although there might be some point in developing > a new language that smoothly merges the desireable features of both. Yes,

Re: [Beowulf] Quick question... on Fortran

2007-05-10 Thread Tom Elken
From: "Brian Dobbins" <[EMAIL PROTECTED]> Subject: Re: [Beowulf] Quick question... on Fortran To: "Robert G. Brown" <[EMAIL PROTECTED]> > Using the PGI compilers ... > The way to do this is to use the 'mcmodel=medium' option and to promote > int

Re: [Beowulf] Quick question... on Fortran

2007-05-10 Thread Robert G. Brown
On Thu, 10 May 2007, Greg Lindahl wrote: On Thu, May 10, 2007 at 04:37:58PM -0400, Robert G. Brown wrote: Who knows, in ten years we may see a merge of fortran and c into a "supercompiler" that permits near transparent switching of syntax, or inlining of fortran in c the way assembler can be i

Re: [Beowulf] Quick question... on Fortran

2007-05-10 Thread Greg Lindahl
On Thu, May 10, 2007 at 04:37:58PM -0400, Robert G. Brown wrote: > Who knows, in ten years we may see a merge of fortran and c into a > "supercompiler" that permits near transparent switching of syntax, or > inlining of fortran in c the way assembler can be inlined now. Existing compilers do inli

Re: [Beowulf] Quick question... on Fortran

2007-05-10 Thread Robert G. Brown
On Thu, 10 May 2007, Toon Moene wrote: Robert G. Brown wrote: I am (as you may well know) extremely fortran averse. However, a researcher in our department has recently asked what the current limits are on the size of an array in modern fortran(s) under linux. I suppose he'd like an answer f

Re: [Beowulf] Quick question... on Fortran

2007-05-10 Thread Robert G. Brown
On Sat, 14 Apr 2007, Brian Dobbins wrote: From one Fortran averse person to another: Using the PGI compilers (at least as of 6.0, but 7.0 is out now and does the same), you can allocate at -least- up to 32GB in an array with Fortran on 64-bit systems. I say at least because I don't currently

Re: [Beowulf] Quick question... on Fortran

2007-05-10 Thread Brian Dobbins
>From one Fortran averse person to another: Using the PGI compilers (at least as of 6.0, but 7.0 is out now and does the same), you can allocate at -least- up to 32GB in an array with Fortran on 64-bit systems. I say at least because I don't currently have more than 32GB on any of my nodes. :)

Re: [Beowulf] Quick question... on Fortran

2007-05-10 Thread laytonjb
> I am (as you may well know) extremely fortran averse. and Hell freezes over... Georg Bush gets an IQ above 100... Hilary Clinton suddenly becomes nice... Pamela Anderson starts dating a non-rock star... Too many things happening too quickly. Ahh! ___

[Beowulf] Quick question... on Fortran

2007-05-10 Thread Robert G. Brown
I am (as you may well know) extremely fortran averse. However, a researcher in our department has recently asked what the current limits are on the size of an array in modern fortran(s) under linux. I suppose he'd like an answer for both 32 and 64 bit systems. From what I have been able to goog

Re: [Beowulf] Quick question...

2007-03-18 Thread Robert G. Brown
On Sat, 17 Mar 2007, Jim Lux wrote: (3) Receptacle Ratings. Where connected to a branch circuit supplying two or more receptacles or outlets, receptacle ratings shall conform to the values listed in Table 210.21(B)(3), or where larger than 50 amperes, the receptacle shall not be less than the

Re: [Beowulf] Quick question...

2007-03-17 Thread Jim Lux
At 08:52 AM 3/17/2007, Robert G. Brown wrote: As I'm working up a server room and some UPS's, a question arises. The APC units we have have a different plug and current rating from the circuits in the wall. In particular, we have L6-30R receptacles and the APC requires only 20A. I had thought

Re: [Beowulf] Quick question...

2007-03-17 Thread Mark Hahn
APC requires only 20A. I had thought that it would be perfectly safe to replace an L5-20P with an L6-30P and plug a 2200 VA UPS into a 30 amp circuit, if you also change the breaker... but the electrician who was doing some of the rewiring said "we can't do that" because "the 30A circuit brea

Re: [Beowulf] Quick question...

2007-03-17 Thread Greg Lindahl
On Sat, Mar 17, 2007 at 05:47:02PM +, Simon Kelley wrote: > Consider > reducto-ad-absurdam and imagine that the cable is really, really weedy, > like zip cord, for instance. And lest people not think this is possible, some co-workers did this once. I smelled the problem early enough to avoi

Re: [Beowulf] Quick question...

2007-03-17 Thread Simon Kelley
Robert G. Brown wrote: As I'm working up a server room and some UPS's, a question arises. The APC units we have have a different plug and current rating from the circuits in the wall. In particular, we have L6-30R receptacles and the APC requires only 20A. I had thought that it would be perfec

Re: [Beowulf] Quick question...

2007-03-17 Thread Ed Hill
On Sat, 17 Mar 2007 "Robert G. Brown" <[EMAIL PROTECTED]> wrote: > > I'm planning to do the rewiring of cables today soon, so if you know > something about his please respond "soon". Hi Robert, I can't say anything about your local wiring legalities but stayonline (located in near-by Raleigh) h

Re: [Beowulf] Quick question...

2007-03-17 Thread Larry Stewart
Robert G. Brown wrote: As I'm working up a server room and some UPS's, a question arises. The APC units we have have a different plug and current rating from the circuits in the wall. In particular, we have L6-30R receptacles and the APC requires only 20A. I had thought that it would be perfec

[Beowulf] Quick question...

2007-03-17 Thread Robert G. Brown
As I'm working up a server room and some UPS's, a question arises. The APC units we have have a different plug and current rating from the circuits in the wall. In particular, we have L6-30R receptacles and the APC requires only 20A. I had thought that it would be perfectly safe to replace an L