ppam_exe = function(path=".", np=parallel::detectCores(), data=NULL, args="DontLetMeEmpty")
{
	command_line = paste("mpirun -np ",np," ",path,"/ppam.exe cluster",sep="")

	#if data provided (as data.frame or matrix...): binarize it, and add it as first argument
	if (!is.null(data))
	{
		if (!is.character(data))
		{
			#assuming matrix or data.frame, WITH row names (identifiers; could be line number...)
			write.csv(data, "/tmp/data_csv", row.names=TRUE, col.names=FALSE)
			system(paste(path,"/ppam.exe serialize /tmp/data_csv /tmp/data_bin 0 0",sep=""))
		} else
		{
			system(paste(path,"/ppam.exe serialize ",data," /tmp/data_bin 0 0",sep=""))
		}
		command_line = paste(command_line," /tmp/data_bin",sep="")
	}

	command_line = paste(command_line," ",args,sep="")
	system(command_line)
}