Re: parallel table
- To: mathgroup at smc.vnet.net
- Subject: [mg107296] Re: parallel table
- From: David Reiss <dbreiss at gmail.com>
- Date: Mon, 8 Feb 2010 03:36:05 -0500 (EST)
- References: <hkm7br$oqi$1@smc.vnet.net>
In all likelihood this is because none of the parallel kernels know about the arrays that you are attempting to plot with them. You will beed to use DistributeDefinitions to inform them about them. --David http://scientificarts.com/worklife On Feb 7, 6:15 am, Very Bad Mother... <shinytinkerb... at googlemail.com> wrote: > Hello, > I would like to create a "film" from the numerical data that I got. > Hence, I've created a table of plots and then by exporting to gif I > can observe the dynamics. The problem is that I'd like to have many > plots inside this table (many frames of my film, so to say) and it > takes a hell of a time. This is why I thought about making this > parallel (got 8 cores). I've used ParallelTable but there are some > errors occuring: > > DensityGraphicsTable = > ParallelTable[ > ListDensityPlot[ToExpression["Psit" <> ToString[j - 1]], > FrameLabel -> {"m", "z"}, > LabelStyle -> {FontFamily -> "Helvetica", FontSize -> 12}, > PlotRange -> All, PlotLabel -> "t=" <> ToString[dt*(j - 1)]], {j, > 1, tmax, tstep}]; > > ListDensityPlot::arrayerr: Psit0 must be a valid array. > ListDensityPlot::arrayerr: Psit250000 must be a valid array. > ListDensityPlot::arrayerr: Psit500000 must be a valid array. > ListDensityPlot::arrayerr: Psit750000 must be a valid array. > ListDensityPlot::arrayerr: Psit1000000 must be a valid array. > ListDensityPlot::arrayerr: Psit1250000 must be a valid array. > ListDensityPlot::arrayerr: Psit1500000 must be a valid array. > ListDensityPlot::arrayerr: Psit1750000 must be a valid array. > ListDensityPlot::arrayerr: Psit50000 must be a valid array. > ListDensityPlot::arrayerr: Psit300000 must be a valid array. > ListDensityPlot::arrayerr: Psit550000 must be a valid array. > ListDensityPlot::arrayerr: Psit800000 must be a valid array. > ListDensityPlot::arrayerr: Psit1050000 must be a valid array. > ListDensityPlot::arrayerr: Psit1300000 must be a valid array. > ListDensityPlot::arrayerr: Psit1550000 must be a valid array. > ListDensityPlot::arrayerr: Psit1800000 must be a valid array. > ListDensityPlot::arrayerr: Psit100000 must be a valid array. > ListDensityPlot::arrayerr: Psit350000 must be a valid array. > ListDensityPlot::arrayerr: Psit600000 must be a valid array. > ListDensityPlot::arrayerr: Psit850000 must be a valid array. > ListDensityPlot::arrayerr: Psit1100000 must be a valid array. > ListDensityPlot::arrayerr: Psit1350000 must be a valid array. > ListDensityPlot::arrayerr: Psit1600000 must be a valid array. > ListDensityPlot::arrayerr: Psit1850000 must be a valid array. > > General::stop: Further output of ListDensityPlot::arrayerr will be > suppressed during this calculation. > General::stop: Further output of ListDensityPlot::arrayerr will be > suppressed during this calculation. > General::stop: Further output of ListDensityPlot::arrayerr will be > suppressed during this calculation. > General::stop: Further output of ListDensityPlot::arrayerr will be > suppressed during this calculation. > General::stop: Further output of ListDensityPlot::arrayerr will be > suppressed during this calculation. > General::stop: Further output of ListDensityPlot::arrayerr will be > suppressed during this calculation. > General::stop: Further output of ListDensityPlot::arrayerr will be > suppressed during this calculation. > General::stop: Further output of ListDensityPlot::arrayerr will be > suppressed during this calculation. > > So I don't know what to do, especially that when I use regular Table > instead of ParallelTable, everything works (but it takes damn long > time). > Any help would be appreciated, > -- > regards, > tinkerbell