Re: [Beowulf] Building OpenFOAM

2016-11-13 Thread tegner
Talked to ouar OpenFOAM expert. He had the following comments: * On a modern machine he compiled OpenFOAM-4.x in about 35 minutes.* gmp.h: Seems gmp-devel is lacking (probably also mpfr-devel. * To speed up one could useĀ "export WM_NCOMPPROCS=32" or something similar. * Also, we have had serious

Re: [Beowulf] Building OpenFOAM

2016-11-13 Thread Christopher Samuel
On 12/11/16 02:04, Prentice Bisbal wrote: > I've heard about how difficult building OpenFOAM was for years. I don't > think it's all that difficult, it just takes a LOT of time to build, so > when errors are encountered, the iteration time between multiple. The > real difficulty arises from how p

Re: [Beowulf] Building OpenFOAM

2016-11-11 Thread John Hearns
Totalsim) -Original Message- From: Beowulf [mailto:beowulf-boun...@beowulf.org] On Behalf Of Prentice Bisbal Sent: 11 November 2016 15:05 To: beowulf@beowulf.org Subject: Re: [Beowulf] Building OpenFOAM I've heard about how difficult building OpenFOAM was for years. I don't think

Re: [Beowulf] Building OpenFOAM

2016-11-11 Thread Prentice Bisbal
I've heard about how difficult building OpenFOAM was for years. I don't think it's all that difficult, it just takes a LOT of time to build, so when errors are encountered, the iteration time between multiple. The real difficulty arises from how poorly documented the build process is. It's lik

Re: [Beowulf] Building OpenFOAM

2016-11-10 Thread Christopher Samuel
On 11/11/16 04:09, Prentice Bisbal wrote: > My build finally failed 1-2 days shy of 3 weeks with an error that it > couldn't find gmp.h. I am now building on a system with faster cores, > and more of them! Welcome to OpenFOAM. The only code we've come across that takes more time to build, and is

Re: [Beowulf] Building OpenFOAM

2016-11-10 Thread Prentice Bisbal
My build finally failed 1-2 days shy of 3 weeks with an error that it couldn't find gmp.h. I am now building on a system with faster cores, and more of them! Prentice On 11/07/2016 02:28 PM, Andrew Holway wrote: I don't have info for that exact version at my fingertips, but did an Op

Re: [Beowulf] Building OpenFOAM

2016-11-07 Thread Andrew Holway
> I don't have info for that exact version at my fingertips, but did an > OpenFOAM 3.0 build last week. It took ~3 hours on a 24-core Xeon Broadwell > server. > I propose we start a book on when it will finish. Who will give me odds on 30 days for the build to complete. ___

Re: [Beowulf] Building OpenFOAM

2016-11-07 Thread Eliot Eshelman
I don't have info for that exact version at my fingertips, but did an OpenFOAM 3.0 build last week. It took ~3 hours on a 24-core Xeon Broadwell server. Eliot On 11/07/2016 10:36 AM, Prentice Bisbal wrote: Beowulfers, Do any of you have experience building OpenFOAM from source? How long do

[Beowulf] Building OpenFOAM

2016-11-07 Thread Prentice Bisbal
Beowulfers, Do any of you have experience building OpenFOAM from source? How long does it normally take to build? I'm building OpenFOAM 4.1 for a user, and it's been compiling the code for close to 3 weeks now. Yes, my build machine is a very slow old system (Dual-Core AMD Opteron(tm) Proces