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 > integers to 8-byte values (for indexing the entries in

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] fast file copying

2007-05-10 Thread Bill Broadley
Felix Rauch Valenti wrote: On 04/05/07, Bill Broadley <[EMAIL PROTECTED]> wrote: Geoff Galitz wrote: > During an HPC talk some years ago, I recall someone mentioned a tool > which can copy large datasets across a cluster using a ring topology. > Perhaps someone here knows of this tool? Not sure

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] re: Quick question... on Fortran

2007-05-10 Thread Bill Broadley
The limit is 2GB for Intel ia-32 compilers, fortran or not. You may need to compile -static to get it. Since this is half the 4GB limit of a 32 bit system (maybe the last bit is lost because of signed arithmetic?), I'm guessing the ia-64 compilers can have much larger arrays. For g77 with a 32 b

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. :)

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

2007-05-10 Thread Matt
>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

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] SSH without login in nodes

2007-05-10 Thread Reuti
Am 08.05.2007 um 15:25 schrieb Angel de Vicente: If it is of any help, we use a similar setting to the one given below by Kilian, where our access file in the compute nodes only has root and myself. When a user submits something to the queuing system (Torque+Maui), the access.conf of the gi

Re: [Beowulf] SSH without login in nodes

2007-05-10 Thread Angel de Vicente
Hi, If it is of any help, we use a similar setting to the one given below by Kilian, where our access file in the compute nodes only has root and myself. When a user submits something to the queuing system (Torque+Maui), the access.conf of the given nodes is modified with a prologue script, so tha

[Beowulf] DisklessWorkstations

2007-05-10 Thread fernando carazo
Hi people, I'm trying to boot from 3 1/2 diskless, I using etherboot for it, the problem is: When I boot from 3 1/2 diskless it's all ok, It's detected the network card until it try to configure the IP, load the kernel and other things, the message that I received is: ... ... Probing pci nic ...

[Beowulf] last [CFP] EuroPVM/MPI'07 -- submission deadline: May 14th

2007-05-10 Thread Derrick Kondo
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