Writing to same file from several kernels?
in [Mathematica]
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From: Sebastian on 21 Jul 2010 07:10 Hi all, assume I have several kernels running which should all log their progress to the same file. Is this possible? Opening a stream from each of kernels does not work, neither does passing on the stream object. Any ideas? TIA Sebastian
From: Michael Stern on 22 Jul 2010 05:41 Do you have a database server running? If not, download an install MySQL Server or another free solution. Use the DatabaseLink package that comes with Mathematica to log your results to a database. Michael On 7/21/2010 7:10 AM, Sebastian wrote: > Hi all, > assume I have several kernels running which should all log their > progress to the same file. Is this possible? > Opening a stream from each of kernels does not work, neither does > passing on the stream object. Any ideas? > TIA > Sebastian >
From: Sebastian on 27 Jul 2010 04:17 Hi, thanks for the suggestion, but unfortunately I can't install an sql server on that very machine. I ended up by opening and closing the stream to the file for each time writing out data, which I think is the correct way to do this anyway. I guess it was kind of a stupid question in the first place. Sebastian On Jul 22, 11:41 am, Michael Stern <nycst...(a)gmail.com> wrote: > Do you have a database server running? If not, download an install > MySQL Server or another free solution. Use the DatabaseLink package that > comes with Mathematica to log your results to a database. > > Michael > > On 7/21/2010 7:10 AM, Sebastian wrote: > > > Hi all, > > assume I have several kernels running which should all log their > > progress to the same file. Is this possible? > > Opening a stream from each of kernels does not work, neither does > > passing on the stream object. Any ideas? > > TIA > > Sebastian
From: Nate Dudenhoeffer on 28 Jul 2010 07:26 Sebastian, If you would like to go the database route take a look at sqlite. I have had great luck using it with Mathematica. sqlite doesn't use the databaselink package. See my earlier post linked below for more info on how to implement it. http://forums.wolfram.com/mathgroup/archive/2010/Apr/msg00400.html Regards, Nate On Tue, Jul 27, 2010 at 3:17 AM, Sebastian <sebhofer(a)gmail.com> wrote: > Hi, > > thanks for the suggestion, but unfortunately I can't install an sql > server on that very machine. I ended up by opening and closing the > stream to the file for each time writing out data, which I think is > the correct way to do this anyway. I guess it was kind of a stupid > question in the first place. > > Sebastian > > On Jul 22, 11:41 am, Michael Stern <nycst...(a)gmail.com> wrote: > > Do you have a database server running? If not, download an install > > MySQL Server or another free solution. Use the DatabaseLink package that > > comes with Mathematica to log your results to a database. > > > > Michael > > > > On 7/21/2010 7:10 AM, Sebastian wrote: > > > > > Hi all, > > > assume I have several kernels running which should all log their > > > progress to the same file. Is this possible? > > > Opening a stream from each of kernels does not work, neither does > > > passing on the stream object. Any ideas? > > > TIA > > > Sebastian > > >
From: Sebastian on 29 Jul 2010 06:41 Hi Nate, thanks for the information. This looks interesting! Sebastian On Jul 28, 1:26 pm, Nate Dudenhoeffer <dudenhoef...(a)wisc.edu> wrote: > Sebastian, > > If you would like to go the database route take a look at sqlite. I have > had great luck using it with Mathematica. > > sqlite doesn't use the databaselink package. See my earlier post linked > below for more info on how to implement it. > > http://forums.wolfram.com/mathgroup/archive/2010/Apr/msg00400.html > > Regards, > Nate > > On Tue, Jul 27, 2010 at 3:17 AM, Sebastian <sebho...(a)gmail.com> wrote: > > Hi, > > > thanks for the suggestion, but unfortunately I can't install an sql > > server on that very machine. I ended up by opening and closing the > > stream to the file for each time writing out data, which I think is > > the correct way to do this anyway. I guess it was kind of a stupid > > question in the first place. > > > Sebastian > > > On Jul 22, 11:41 am, Michael Stern <nycst...(a)gmail.com> wrote: > > > Do you have a database server running? If not, download an install > > > MySQL Server or another free solution. Use the DatabaseLink package that > > > comes with Mathematica to log your results to a database. > > > > Michael > > > > On 7/21/2010 7:10 AM, Sebastian wrote: > > > > > Hi all, > > > > assume I have several kernels running which should all log their > > > > progress to the same file. Is this possible? > > > > Opening a stream from each of kernels does not work, neither does > > > > passing on the stream object. Any ideas? > > > > TIA > > > > Sebastian
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