87 lines
2.6 KiB
Matlab
87 lines
2.6 KiB
Matlab
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function [stdout, stderr] = RunOpenEMS_Parallel(Sim_Paths, Sim_Files, opts, Settings)
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% function [stdout, stderr] = RunOpenEMS_Parallel(Sim_Paths, Sim_Files, opts, Settings)
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%
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% Run multiple openEMS simulations in parallel, distributed on multiple
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% machines using a ssh host_list! (currently on Linux only)
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%
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% This function relies on InitQueue etc.
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%
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% input:
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% Sim_Paths: cell array of pathes to simulate by RunOpenEMS
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% Sim_Files: filename or cell array of filenames to simulate
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% opts: openEMS options. sa RunOpenEMS
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% Settings: use the settings to define multiple host for simulation
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% e.g.: Settings.SSH.bin ='<path_to_openEMS>/openEMS.sh';
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% Settings.SSH.host_list = {'list','of','hosts'};
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%
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% Note: If no SSH host_list is defined, this function will skip the
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% parallel run and switch back to a default RunOpenEMS!
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%
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% See also RunOpenEMS, FindFreeSSH, InitQueue
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%
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% openEMS matlab interface
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% -----------------------
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% author: Thorsten Liebig 2011
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pause_queue = 1; %pause between consecutive runs (needed for FindFreeSSH)
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skip_parallel = 0;
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% currently only supporting linux, run conventional RunOpenEMS
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if ~isunix ||
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warning 'your OS is not supported (Unix only), running default RunOpenEMS';
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skip_parallel = 1;
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end
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% in case only one path is given, run conventional RunOpenEMS
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if ischar(Sim_Paths)
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warning 'only a single path given, running default RunOpenEMS'
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skip_parallel = 1;
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end
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% in case SSH.host_list is not defined, run conventional RunOpenEMS
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if ~isfield(Settings,'SSH')
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warning 'SSH options missing, running default RunOpenEMS'
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skip_parallel = 1;
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elseif ~isfield(Settings.SSH,'host_list')
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warning 'SSH.host_list option missing, running default RunOpenEMS'
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skip_parallel = 1;
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end
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if (skip_parallel)
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RunOpenEMS(Sim_Paths, Sim_Files, opts, Settings)
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stdout = [];
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stderr = [];
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return
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end
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if ~iscell(Sim_Paths)
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error('RunOpenEMS_Parallel:needs a cell array of Sim_Paths to simulate');
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end
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% get the path to this file
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[dir] = fileparts( mfilename('fullpath') );
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queue = InitQueue('DependPath',dir);
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% spawn multiple simulations
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numSims = numel(Sim_Paths);
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for n=1:numSims
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if iscell(Sim_Files)
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Sim_File = Sim_Files{n};
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else
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Sim_File = Sim_Files;
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end
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queue = Add2Queue(queue,'RunOpenEMS',{Sim_Paths{1}, Sim_File, opts, Settings});
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disp(['openEMS simulation #' int2str(n) ' in directory: ' Sim_Paths{n} ' started!']);
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pause(pause_queue);
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end
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[queue] = FinishQueue(queue);
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for n=1:numel(Sim_Paths)
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stdout{n} = queue.jobs{n}.stdout;
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stderr{n} = queue.jobs{n}.stderr;
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end
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