[Cbc] [External] Re: 2.10 version on Ubuntu

Fri Sep 13 16:05:29 EDT 2019

Which version of Cbc are you installing? We have seen 403s on some of the
third-party packages, but we now have backup download locations for
many/most of them and I've not seen the primary and all backups fail very
often. It shouldn't be a long-term issue. As an aside, you will probably
get a faster version of Cbc if you install the Lapack Ubuntu package, which
will be automatically picked up in the configuration.

As far as I know, you should see multiple cores being used if you build
with --enable-cbc-parallel. If not, open an issue on Github and we'll try
to see what's happening.

Ted

On Fri, Sep 13, 2019 at 5:45 AM Naladimmu Sreelakshmi <
naladimmu.sreelakshmi at fractal.ai> wrote:

> Hi Ted,
>
> Was able to install basis the commands what you and JP have helped with!
>
> But now I am facing an issue that lapack installation fails throwing 403
> error. Had also seen this happen with mumps (it was skipping earlier
> though).
>
> On a separate note, want to confirm if I use --enable-cbc-parallel while
> configuring, I still see only one core getting used?
>
> Thanks,
> [image: 1518440930887_PastedImage]
> Sreelakshmi Naladimmu | Senior Consultant
> +91 9176264380 | fractal.ai
> [image: 1518428993160_PastedImage]
>
> ------------------------------
> *From:* Ted Ralphs <ted at lehigh.edu>
> *Sent:* 10 September 2019 22:23
> *To:* JP Fasano <jpfasano at gmail.com>
> *Cc:* Naladimmu Sreelakshmi <naladimmu.sreelakshmi at fractal.ai>;
> cbc at list.coin-or.org <cbc at list.coin-or.org>
> *Subject:* [External] Re: [Cbc] 2.10 version on Ubuntu
>
> Just to close the loop, I made some additional improvements based on JP's
> feedback. ldconfig is now run automatically after the install on Linux
> whenever the install directory is not writable. It turns out that ldconfig
> is run automatically by libtool EXCEPT in the case of installing a
> directory that is in the system default library path. There doesn't seem to
> be a very good reason for this, but that's what it is.
>
> I added some additional output explaining this and also changed the
> default verbosity level to 1 to remove some of the visual chaff.
>
> By the way, another useful tidbit is that the default version that is
> fetched is the git master version, which is the development version (under
> our current workflow). The script now suggests that you might want to try
> the latest release, which you can get with
>
> coinbrew fetch Cbc:releases/2.10.3 --no-prompt
>
> Have fun!
>
> Cheers,
>
> Ted
>
> On Mon, Sep 9, 2019 at 5:41 PM Ted Ralphs <ted at lehigh.edu> wrote:
>
> JP,
>
> A huge thanks to you, too, for the feedback. It helps a lot hearing from
> people who are using these tools, especially as they are in development. I
> actually don't have too much occasion to install to /usr/local, as I've
> always got many different builds that I'm working with locally. It helps to
> know what the experience is like for someone who just wants to install in
> /usr/local and leave it. I thought we were actually embedding the location
> of the libraries in the binary and that this issue shouldn't come up. I'll
> check into why that doesn't seem to be working.
>
> For posterity, a general solution to your issue would have been to add
>
> export LD_LIBRARY_PATH=/usr/local/lib
>
> to your ~/.bashrc, which should work on any platform. The ldconfig
> solutions is easier on Ubuntu, but it is only a bit of luck that it works
> because /usr/local/lib is listed in /etc/ld.so.conf.d/libc.conf.
>
> I'm going to update the documentation and also put some messages into
> coinbrew itself to prompt people to what to do if they encounter this
> issue. Thanks again for your feedback!
>
> Cheers,
>
> Ted
>
> On Mon, Sep 9, 2019 at 4:28 PM JP Fasano <jpfasano at gmail.com> wrote:
>
> Hi Ted,
>
> Everything is now building and running.
> A huge thank you for your help.
>
> After successfully doing the install with
>
> sudo ./coinbrew install Cbc
>
> the cbc standalone executable was not running (even after rebooting the
> machine).
> Here is what happened:
>
> jpfasano at WitOpenSource:~/coinCbc$ cbc
> cbc: error while loading shared libraries: libCbcSolver.so.0: cannot open
> shared object file: No such file or directory
>
> After googling around I found that the command
>
> sudo /sbin/ldconfig -v
>
> fixed the problem (web page link
> <https://itsfoss.com/solve-open-shared-object-file-quick-tip/>).
>
> So in summary, these are the commands that worked for me (with a lot of
> your help) to checkout and build Cbc:
>
>    - wget
>    https://raw.githubusercontent.com/coin-or/coinbrew/master/coinbrew
>    - chmod +x coinbrew
>    - ./coinbrew fetch Cbc
>    - ./coinbrew build Cbc --no-prompt --prefix=/usr/local
>    - sudo ./coinbrew install Cbc
>    - sudo /sbin/ldconfig -v
>
> Thanks. I don't think I could have figured this out without your help.
>
> JP
>
> On Mon, Sep 9, 2019 at 12:51 PM Ted Ralphs <ted at lehigh.edu> wrote:
>
> Ah, yes, forgot to back out one change. If you just pull the changes, the
> install should work now, no need to rebuild.
>
> And thanks very much for posting the complete log of the build each time!
> That makes it immensely easier to tell what's going on.
>
> If you want to suppress the output once everything is working, you can use
> --verbosity 1 or -v 1 to just get minimal output.
>
> Ted
>
> On Mon, Sep 9, 2019 at 12:35 PM JP Fasano <jpfasano at gmail.com> wrote:
>
> Hi Ted,
> "./coinbrew build Cbc --no-prompt --prefix=/usr/local" works great now!
> Very impressive.
> There is a lot going on.
>
> *>  sudo ./coinbrew install Cbc  *
>
> Thank you for sending this additional command.
> Your timing was perfect, because I had just realized that the built
> libraries and executables were still in my local directories. I was
> trying to figure out what needed to be done next, when your posting arrived.
>
> Something with the "sudo ./coinbrew install Cbc"  isn't working for me.
> Here is the console log:
>
> jpfasano at WitOpenSource:~/coinCbc$ sudo ./coinbrew install Cbc
> [sudo] password for jpfasano:
> Welcome to the COIN-OR fetch and build utility
>
> For help, run script with --help.
>
> Entering interactive mode (suppress with --no-prompt)...
>
> Disabling uninstalled packages
>
> ##################################################
> ### Installing ThirdParty/ASL
> ##################################################
>
> ./coinbrew: line 916: cd: /home/jpfasano/coinCbc/build/ThirdParty/ASL/1.4:
> No such file or directory
>
>
> LIne 916 of coinbrew is
>
>  cd $build_dir/$dir/$version_num
>
>
> The directory /home/jpfasano/coinCbc/build/ThirdParty/ASL  does not
> contain a directory named 1.4.
> Here is what the directory /home/jpfasano/coinCbc/build/ThirdParty/ASL
> contains:
>
> jpfasano at WitOpenSource:~/coinCbc/build/ThirdParty/ASL$ ls
> arith.h  coinasl.pc  coinasl-uninstalled.pc  compile_MS_ASL
>  compile_Unix_ASL  config.log  config.status  funcadd0.o  libamplsolver.a
> libcoinasl.la  libtool  Makefile  stdio1.h
>
> If helpful, here is /home/jpfasano/coinCbc/build/ThirdParty/ASL/config.log:
> link <https://1drv.ms/u/s!ArBmlTcrk72FoL1kzS-r6Mbfs2-aeQ?e=kFwn4o>
>
> The console log from running "./coinbrew build Cbc --no-prompt
> --prefix=/usr/local"  is here: link
> <https://1drv.ms/u/s!ArBmlTcrk72FoL1jmQEhQA-yi3XLWg?e=hfckLc>
>
> Any help is appreciated. (no hurry).
> Thank you.
> JP
>
>
>
> --
> Dr. Ted Ralphs
> Professor, Industrial and Systems Engineering
> Lehigh University
> (610) 628-1280
> ted 'at' lehigh 'dot' edu
> coral.ie.lehigh.edu/~ted
>
>
>
> --
> Dr. Ted Ralphs
> Professor, Industrial and Systems Engineering
> Lehigh University
> (610) 628-1280
> ted 'at' lehigh 'dot' edu
> coral.ie.lehigh.edu/~ted
>
>
>
> --
> Dr. Ted Ralphs
> Professor, Industrial and Systems Engineering
> Lehigh University
> (610) 628-1280
> ted 'at' lehigh 'dot' edu
> coral.ie.lehigh.edu/~ted
>
>
>
>
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>
>
>

-- 
Dr. Ted Ralphs
Professor, Industrial and Systems Engineering
Lehigh University
(610) 628-1280
ted 'at' lehigh 'dot' edu
coral.ie.lehigh.edu/~ted
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