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function RunOpenEMS(Sim_Path, Sim_File, opts, Settings)
% function RunOpenEMS(Sim_Path, Sim_File, <opts, Settings>)
%
% Run an openEMS simulation.
%
% arguments:
% Sim_Path: specifiy the simulation folder (folder must exist!)
% Sim_File: xml-filename to simulate, created by WriteOpenEMS
%
% optional arguments
%
% opts: list of openEMS options
% possible options:
% --disable-dumps Disable all field dumps for faster simulation
% --debug-material Dump material distribution to a vtk file for debugging
% --debug-PEC Dump metal distribution to a vtk file for debugging
% --debug-operator Dump operator to vtk file for debugging
% --debug-boxes Dump e.g. probe boxes to vtk file for debugging
% --debug-CSX Write CSX geometry file to debugCSX.xml
% --engine=<type> Choose engine type
% --engine=fastest fastest available engine (default)
% --engine=basic basic FDTD engine
% --engine=sse engine using sse vector extensions
% --engine=sse-compressed engine using compressed operator + sse vector extensions
% --engine=MPI engine using compressed operator + sse vector extensions + MPI parallel processing
% --engine=multithreaded engine using compressed operator + sse vector extensions + MPI + multithreading
% --numThreads=<n> Force use n threads for multithreaded engine
% --no-simulation only run preprocessing; do not simulate
% --dump-statistics dump simulation statistics to 'openEMS_run_stats.txt' and 'openEMS_stats.txt'
%
% Additional global arguments
% --showProbeDiscretization Show probe discretization information
% --nativeFieldDumps Dump all fields using the native field components
% -v,-vv,-vvv Set debug level: 1 to 3
%
%
% settings: list of Matlab settings
% possible settings:
% Settings.LogFile = 'openEMS.log'
% Settings.Silent = 0
%
% additional remote simulation settings
% Note: ssh only on unix with working ssh client or windows with putty client
% openEMS Linux server or Windows with cygwin necessary
% Settings.SSH.host = '<hostname or ip>'
% Settings.SSH.bin = '<path_to_openEMS>/openEMS.sh'
% ssh optional:
% Settings.SSH.host_list = {'list','of','hosts'}; %searches for a free host
% %on Windows needed additionally
% Settings.SSH.Putty.Path = '<path_to>\putty';
% Settings.SSH.Putty.Key = '<path_to>\putty_private_key.ppk';
%
% MPI settings:
% Settings.MPI.xxx --> help RunOpenEMS_MPI
%
%
% example:
% %create CSX and FDTD
% WriteOpenEMS('/tmp/path_to_run_in/myfile.xml', FDTD, CSX)
% RunOpenEMS('/tmp/path_to_run_in','myfile.xml','-v')
%
% See also WriteOpenEMS FindFreeSSH InitCSX InitFDTD RunOpenEMS_MPI
%
% openEMS matlab interface
% -----------------------
% author: Thorsten Liebig
if nargin < 2
error 'specify the Sim_Path and Sim_file to simulate'
end
if nargin < 3
opts = '';
end
if (nargin<4)
Settings = [];
end
if (isfield(Settings,'MPI') && isunix)
if (Settings.MPI.NrProc>1)
RunOpenEMS_MPI(Sim_Path, Sim_File, opts, Settings);
return;
end
end
ssh_command = 'ssh';
scp_command = 'scp';
scp_options = '';
ssh_options = '';
enable_ssh = 0;
enable_ssh = isfield(Settings,'SSH') && isunix;
if ~isunix
enable_ssh = isfield(Settings,'SSH') && isfield(Settings.SSH,'Putty');
if (enable_ssh)
ssh_command = [Settings.SSH.Putty.Path '/plink '];
ssh_options = [ssh_options ' -i ' Settings.SSH.Putty.Key];
scp_command = [Settings.SSH.Putty.Path '/pscp '];
scp_options = [scp_options ' -i ' Settings.SSH.Putty.Key];
end
end
savePath = pwd;
cd(Sim_Path);
if (enable_ssh)
scp_options = [scp_options ' -C'];
ssh_options = [ssh_options ' -x -C'];
% ssh options: no X forwarding; no password prompt (use pub keys!); no host checking
if (isunix)
ssh_options = [ssh_options ' -o "PasswordAuthentication no" -o "StrictHostKeyChecking no"'];
scp_options = [scp_options ' -o "PasswordAuthentication no" -o "StrictHostKeyChecking no"'];
end
if isfield(Settings.SSH,'host_list')
host = FindFreeSSH(Settings.SSH.host_list, Settings);
if ~isempty(host)
Settings.SSH.host = host;
else
error('openEMS:RunOpenEMS', 'unable to find host, abort openEMS');
end
end
% create a tmp working dir
[status, result] = system([ssh_command ' ' ssh_options ' ' Settings.SSH.host ' "mktemp -d /tmp/openEMS_XXXXXXXXXXXX"']);
if (status~=0)
disp(result);
error('openEMS:RunOpenEMS','mktemp failed to create tmp directory!');
end
ssh_work_path = strtrim(result); %remove tailing \n
disp(['Running remote openEMS on ' Settings.SSH.host ' at working dir: ' ssh_work_path]);
%copy openEMS all simulation files to the ssh host
[stat, res] = system([scp_command ' ' scp_options ' * ' Settings.SSH.host ':' ssh_work_path '/']);
if (stat~=0)
disp(res);
error('openEMS:RunOpenEMS','scp failed!');
end
%run openEMS (with log file if requested)
if isfield(Settings,'LogFile') && isunix
append_unix = [' 2>&1 | tee ' Settings.LogFile];
else
append_unix = [];
end
status = system([ssh_command ' ' ssh_options ' ' Settings.SSH.host ' "cd ' ssh_work_path ' && ' Settings.SSH.bin ' ' Sim_File ' ' opts '"' append_unix]);
if (status~=0)
disp(result);
error('openEMS:RunOpenEMS','ssh openEMS failed!');
end
disp( 'Remote simulation done... copying back results and cleaning up...' );
%copy back all results
[stat, res] = system([scp_command ' -r ' scp_options ' ' Settings.SSH.host ':' ssh_work_path '/* ' pwd '/']);
if (stat~=0);
disp(res);
error('openEMS:RunOpenEMS','scp failed!');
end
%cleanup
[stat, res] = system([ssh_command ' ' ssh_options ' ' Settings.SSH.host ' rm -r ' ssh_work_path]);
if (stat~=0);
disp(res);
warning('openEMS:RunOpenEMS','remote cleanup failed!');
end
else
args = ['"' Sim_File '" ' opts]
if isfield(Settings,'LogFile') && isfield(Settings,'Silent')
invoke_openEMS(args,['"' Settings.LogFile '"'],Settings.Silent);
elseif isfield(Settings,'LogFile')
invoke_openEMS(args,['"' Settings.LogFile '"']);
elseif isfield(Settings,'Silent')
invoke_openEMS(args,[],Settings.Silent);
else
invoke_openEMS(args);
end
end
cd(savePath);
return
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