Originally posted by: SystemAdmin

[teresa said:]

Hello!

I have read some of the previous messages and I have noticed that some of the reported problems were "platform related"...
Therefore I would like to ear your view on which platform to choose to a machine with a Intel (R) Core (TM)2 Duo CPU E8400@3,00 GHz (4GB of RAM)

Thank you all,
Teresa

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Originally posted by: SystemAdmin

[teresa said:]

Thank you for your quick answer

I have worked for some years with WindowsXP and i know exactly what are you talking about...

So, for this new machine I had all ready decided on an Unix based platform, the doubt was which one to choose...

When consulting the official list of the supported platforms (http://www.ilog.com/products/cplex/product/platforms.cfm) i don't find Ubuntu. Do you think that this means that there may be some problems while running Cplex (I have to run some very, very large instances...)

Thank you once again,
Teresa



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Originally posted by: SystemAdmin

[prubin said:]

I'm not expert, but I do not think that the problem sizes you can handle will depend much on the specific distribution.  As far as I know, the operating system core is determined by Linus Torvalds and the central group of developers; distributions differ in terms of what applications, windowing systems etc. they bundle, what package manager they use, how often they update packages etc.  I suspect that ILOG's list of supported distributions has more to do with packing and perhaps which C++ compiler chain is standard in the distribution than with any fundamental differences.  I use Java, so differences in the C++ compilers by and large do not affect me.  Ubuntu uses the Debian package system, and Debian is on the supported list.  From one or two posts and some minimal personal experience, I think there may be some issues with using the C++ compiler on Ubuntu; I haven't had time to pin down what the problem is, or even if there definitely is a problem.

While I'm happy with Ubuntu, and have had no trouble running CPLEX 11 on it, I'm not necessarily pushing it.  Ubuntu is one of the easier distributions for a first-time Linux user migrating from Windows, but other distributions have their merits as well.  My understanding is that new open-source software packages, and updates of existing packages, tend to appear sooner for some of the other distributions (such as Debian) than they do for Ubuntu, at least as far as the official Ubuntu repositories go.  That would not apply to CPLEX, which you would download from ILOG/IBM in any case.

You can find information about the major distributions at Distribution Watch ([url=http://distrowatch.com/dwres.php?resource=major]http://distrowatch.com/dwres.php?resource=major[/url]).

/Paul
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Originally posted by: SystemAdmin

[hernan said:]

Where can I get a CPLEX for Linux (trial/demo/student version) ?? I didn't found it, I use Ubuntu and I've to install a virtual machine with Windows XP only for a CPLEX trial.

Thanks!

[quote author=prubin link=topic=1134.msg3249#msg3249 date=1242181853]
I'm not expert, but I do not think that the problem sizes you can handle will depend much on the specific distribution.  As far as I know, the operating system core is determined by Linus Torvalds and the central group of developers; distributions differ in terms of what applications, windowing systems etc. they bundle, what package manager they use, how often they update packages etc.  I suspect that ILOG's list of supported distributions has more to do with packing and perhaps which C++ compiler chain is standard in the distribution than with any fundamental differences.  I use Java, so differences in the C++ compilers by and large do not affect me.  Ubuntu uses the Debian package system, and Debian is on the supported list.  From one or two posts and some minimal personal experience, I think there may be some issues with using the C++ compiler on Ubuntu; I haven't had time to pin down what the problem is, or even if there definitely is a problem.

While I'm happy with Ubuntu, and have had no trouble running CPLEX 11 on it, I'm not necessarily pushing it.  Ubuntu is one of the easier distributions for a first-time Linux user migrating from Windows, but other distributions have their merits as well.  My understanding is that new open-source software packages, and updates of existing packages, tend to appear sooner for some of the other distributions (such as Debian) than they do for Ubuntu, at least as far as the official Ubuntu repositories go.  That would not apply to CPLEX, which you would download from ILOG/IBM in any case.

You can find information about the major distributions at Distribution Watch ([url=http://distrowatch.com/dwres.php?resource=major]http://distrowatch.com/dwres.php?resource=major[/url]).

/Paul

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#DecisionOptimization

Originally posted by: SystemAdmin

[teresa said:]

Hello again!

I thank you all for your advice. I have decided  to install Ubuntu.
Should I choose the 32 or the 64 bit version???
Thanks, Teresa
PS: Sorry Herman, but I have no idea of where you can find such a thing...

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Originally posted by: SystemAdmin

[prubin said:]

[quote author=teresa link=topic=1134.msg3317#msg3317 date=1243005779]
I thank you all for your advice. I have decided  to install Ubuntu.
Should I choose the 32 or the 64 bit version???


Choose the version that matches the CPU on your computer.  32 bit CPU -> 32 bit software, and similarly for 64 bit.

/Paul

#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

[teresa said:]

thanks once again!!
you were very helpfull!
Teresa
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#DecisionOptimization