Erik Schnetter <schnetter@aei.mpg.de>

June 11, 2004

Abstract

1 Introduction

2 Utilities

These scripts may be useful handling CarpetIOASCII data:

The first script resides in CarpetIOASCII/src/utils and was meant primarily to convert 1D data, since the CarpetIOScalar data format is easily readable also by ygraph. Anyway, this script converts also scalar data files to the original 2-column ygraph format. Usage: Carpet2ygraphCat.pl Inputfile.

The second script can be used to merge CarpetIOScalar output written before and after recovery. It reads one or more files in CarpetIOScalar format and writes their contents to STDOUT, eliminating duplicate datasets (all but the last occurance are discarded), which may be created when a run died abruptly without checkpointing at the last output itaration and is recovered from a previous checkpoint. Usage: mergeCarpetIOScalar.pl list of files.
Example 1: mergeCarpetIOScalar.pl alp.norm1.asc > alp.norm1.asc.merged.
Example 2: mergeCarpetIOScalar.pl alp.norm1.asc.firstCHKPT alp.norm1.asc.secondCHKPT > alp.norm1.asc.merged.
This script was written by Thomas Radke.

References

3 Parameters




all_reductions_in_one_file
Scope: private  BOOLEAN



Description: Write all requested reductions in one file instead of per reduction



  Default: no






one_file_per_group
Scope: private  BOOLEAN



Description: Write one file per group instead of per variable



  Default: no






out_precision
Scope: private  INT



Description: How many digits to output floating-point numbers with



Range   Default: 15
0:*
Number of precision digits






outscalar_criterion
Scope: private  KEYWORD



Description: Criterion to select scalar output intervals, overrides out_every



Range   Default: iteration
never
Never output
iteration
Output every so many iterations
divisor
Output if iteration mod divisor == 0.
time
Output every that much coordinate time






outscalar_dir
Scope: private  STRING



Description: Name of scalar output directory, overrides out_dir



Range   Default: (none)
Empty: use IO::out_dir
.+
Not empty: directory name






outscalar_dt
Scope: private  REAL



Description: How often to do scalar output, overrides out_dt



Range   Default: -2
(0:*
In intervals of that much coordinate time
As often as possible
-1
Disable output
-2
Default to IO::out_dt






outscalar_every
Scope: private  INT



Description: How often to do scalar output, overrides IO::out_every



Range   Default: -2
1:*
Output every so many time steps
-1:0
No output
-2
Default to IO::out_every






outscalar_reductions
Scope: private  STRING



Description: List of reductions to output in scalar form



Range  Default: count minimum maximum sum average norm1 norm2 norm_inf icount iaverage inorm1 inorm2
A regex which matches everything






outscalar_vars
Scope: private  STRING



Description: Variables to output in scalar form



Range   Default: (none)
A regex which matches everything






out_criterion
Scope: shared from IO KEYWORD






out_dir
Scope: shared from IO STRING






out_dt
Scope: shared from IO REAL






out_every
Scope: shared from IO INT






out_fileinfo
Scope: shared from IO KEYWORD






out_group_separator
Scope: shared from IO STRING






strict_io_parameter_check
Scope: shared from IO BOOLEAN






verbose
Scope: shared from IO KEYWORD



4 Interfaces

General

Implements:

ioscalar

Grid Variables

4.0.1 PRIVATE GROUPS




  Group Names    Variable Names    Details   




last_output_iteration   compact0
last_output_iteration   dimensions0
  distributionCONSTANT
  group typeSCALAR
  timelevels1
 variable typeINT




last_output_time   compact0
last_output_time   dimensions0
  distributionCONSTANT
  group typeSCALAR
  timelevels1
 variable typeREAL




this_iteration   compact0
this_iteration   dimensions0
  distributionCONSTANT
  group typeSCALAR
  timelevels1
 variable typeINT




Uses header:

Timer.hh

carpet.hh

typecase.hh

typeprops.hh

5 Schedule

This section lists all the variables which are assigned storage by thorn Carpet/CarpetIOScalar. Storage can either last for the duration of the run (Always means that if this thorn is activated storage will be assigned, Conditional means that if this thorn is activated storage will be assigned for the duration of the run if some condition is met), or can be turned on for the duration of a schedule function.

Storage

 

Always:  
last_output_iteration last_output_time this_iteration 
   

Scheduled Functions

CCTK_STARTUP

  carpetioscalarstartup

  startup routine

 

 After: ioutil_startup
 Language:c
 Options: global
 Type: function

CCTK_INITIAL

  carpetioscalarinit

  initialisation routine

 

 Language:c
 Options: global
 Type: function