On 14 Jan 2012, at 00:41, Jose Fiestas Iquira wrote:
Hi Ian, I did the changes but it started and finished early. I am attaching the qc0-mclachlan.err file. At the end there is a warning in one of the Carpet files (mask_test.c)
The warning you see,
WARNING level 1 in thorn CarpetReduce processor 0 host qb517 (line 120 of /home/ettest24/Cactus/arrangements/Carpet/CarpetReduce/src/mask_test.c): -> Simulation domain volume and reduction weight sum differ
is a known issue (https://trac.einsteintoolkit.org/ticket/434) which was fixed after the last release and the fix is only available in the development version. I believe that the warning is not fatal, and it should not have terminated the simulation. Can you also post the qc0-mclachlan.out file?
Where can I find the puncture tracker?
The PunctureTracker thorn is part of the Einstein Toolkit thornlist, so you should have it already. However, I think the best thing for you to do initially would be to look at the BH_diagnostics files for the apparent horizon centroid locations for tracking the locations of the BHs.
Thanks, Jose
On Fri, Jan 13, 2012 at 4:38 AM, Ian Hinder ian.hinder@aei.mpg.de wrote:
On 13 Jan 2012, at 12:32, Jose Fiestas Iquira wrote:
Yes, trajectories and wave forms would be enough for now. Which are the names of this files? Many of the .asc files have data like kxx, kxy, kxz, etc. Is there any description of them?
Not that I am aware of. Files with extension .x.asc are 1D ascii output of grid functions from CarpetIOASCII. kxy is the variable name for the x,y component of the extrinsic curvature tensor K. The waveform file should be in mp_psi4_l2_m2_r*.asc where * corresponds to the radius of the extraction sphere. However, looking at the qc0-mclachlan.par file, I see that there is no wave extraction switched on. You should be able to enable wave extraction by adding something like the following to the parameter file:
ActiveThorns = "WeylScal4 CarpetInterp AEILocalInterp Multipole"
Multipole::nradii = 3 Multipole::radius[0] = 30 Multipole::radius[1] = 40 Multipole::radius[2] = 50 Multipole::variables = "WeylScal4::Psi4r{sw=-2 cmplx=’WeylScal4::Psi4i’}" Multipole::l_max = 4 WeylScal4::fdOrder = 4
(I haven't tested this, so let me know if it doesn't work)
I've just found that the usual PunctureTracker thorn is not enabled in this example parameter file. So to look at trajectories you will have to use the apparent horizon centroids. These are in the files BH_diagnostics.ah*.gp. The meanings of the columns are at the top of the files. You want the centroid x and y columns to plot in GnuPlot.
Thanks, Jose
On Fri, Jan 13, 2012 at 12:41 AM, Ian Hinder ian.hinder@aei.mpg.de wrote:
On 12 Jan 2012, at 23:46, Jose Fiestas Iquira wrote:
Dear all,
I run the tutorial and found other interesting examples like the McLachlan tool for Binary Black Holes.
Regarding the McLachlan tool, Could somebody help me finding a description of the output? Is all contained in the .asc files? I would like to visualize it.
Hi Jose,
What sort of output do you want to visualise? Cactus thorns typically output "lightweight" information such as BH trajectories and waveforms as ASCII, and more heavyweight data -- like gridfunctions -- as HDF5. For the trajectories (from thorn Puncture Tracker) and waveforms (from Multipole) you can use gnuplot or anything that can read standard ASCII output to visualise them. For gridfunctions in HDF5 format, I think the easiest way to get started is to use VisIt, for which there is a Carpet plugin (though installing VisIt is sometimes not so easy!).
Does anyone know if the Carpet plugin is distributed with VisIt yet? I believe that was the intention.
Cheers, Jose
On Wed, Jan 11, 2012 at 7:06 PM, Jose Fiestas Iquira jafiestas@lbl.gov wrote:
Thanks to Erik for advise. ETK example simulation run successfully.
On Wed, Jan 11, 2012 at 11:49 AM, Jose Fiestas Iquira jafiestas@lbl.gov wrote:
Right, it looks good now:
./simfactory/bin/sim list-simulations
static_tov [ACTIVE (RUNNING), restart 0000, job id 595490]
Let see how it looks when it finishes. The example was set to 8 hours.
Thanks,
Jose
On Wed, Jan 11, 2012 at 11:45 AM, Erik Schnetter schnetter@cct.lsu.edu wrote:
On Wed, Jan 11, 2012 at 2:42 PM, Jose Fiestas Iquira jafiestas@lbl.gov wrote:
The only thing is that now
$ ./simfactory/bin/sim list-simulations
returns
Error: unknown command list-simulation
Aborting Simfactory.
Did you really type "list-simulations", and the error message says
"list-simulation" (without the final "s")?
-erik
--
Erik Schnetter schnetter@cct.lsu.edu http://www.cct.lsu.edu/~eschnett/
Users mailing list Users@einsteintoolkit.org http://lists.einsteintoolkit.org/mailman/listinfo/users
-- Ian Hinder http://numrel.aei.mpg.de/people/hinder
-- Ian Hinder http://numrel.aei.mpg.de/people/hinder
<qc0-mclachlan.err>