Re: remote kernel problem
- To: mathgroup at smc.vnet.net
- Subject: [mg111685] Re: remote kernel problem
- From: Cristobal Navarro <axischire at gmail.com>
- Date: Tue, 10 Aug 2010 03:56:00 -0400 (EDT)
i tested what you suggested Nate, instead of just puting "math" in the argument. i put complete path /usr/local/bin/math but i get the same error when testing a 2+2 example. if this is useful: the arguments of MLOpen: -LinkMode Listen -LinkProtocol TCPIP -LinkOptions MLDontInteract the arguments of shell command to launch kernel `java` -jar `mathssh` fcluster@agua /usr/local/bin/math -mathlink -LinkMode Connect -LinkProtocol TCPIP -LinkName "`linkname`" -LinkHost `ipaddress` fcluster is the account on the remote node which has hostname "agua". my laptop uses another account, from what i know it is not necesary to have the same username on both nodes right? On Mon, Aug 9, 2010 at 5:31 PM, Nate Dudenhoeffer <dudenhoeffer at wisc.edu>wrote: > Cristobal, > > I had a similar problem setting up remote kernels on Mac OS. In the kernel > configuration try putting the complete path to the kernel, instead of simply > "math." > > On Mac OS the path is: > /Applications/Mathematica.app/Contents/MacOS/MathKernel > > Regards, > Nate > > On Mon, Aug 9, 2010 at 4:13 AM, Cristobal Navarro <axischire at gmail.com>wrote: > >> hello, >> >> i am having problems launching remote kernels. >> i have a Xeon server (Linux) on which mathematica is installed, and >> the "math" command works. >> >> on my laptop, i have linux too, and on mathematica i add the kernel to >> be launched on the remote (the server) node. >> then i try one example: >> 2+2 >> >> i press shift+enter... mathematica asks me to insert the password of >> the remote node user name.... ok and then i get error message: >> >> "The kernel serverKernel failed to connect to the front end. (Error = >> MLECONNECT). You should try running the kernel connection outside the >> front end." >> >> for debugging purposes, i made a kernel for my same laptop, just like >> a "Local" kernel but i choose remote and put my ip adress and my >> useracount of my laptop. >> >> i test 2+2, it asks my password..ok, then the same message: >> >> "The kernel self failed to connect to the front end. (Error = >> MLECONNECT). You should try running the kernel connection outside the >> front end." >> >> this is really weird. >> >> the parameters of the "self kernel" are this: >> `java` -jar `mathssh` fcluster@agua math -mathlink -LinkMode Connect - >> LinkProtocol TCPIP -LinkName "`linkname`" -LinkHost `ipaddress` >> >> if remote kernel does not work with my same computer, i better not >> keep trying with the server yet. >> >> any help is welcome, i really dont know what is going on. >> >> best regards >> Cristobal. >> >> >> >