standard error, standard out and dart log file

[hkershaw-brown]

Notes on DART messages (error_handler)

calls to 'error_handler', 'log_it(message)':
In the .f90 code errors, messages, and warnings get written to standard output. Nothing goes to standard error.

Note E_ALLMSG do not get written to the log file.

DART/assimilation_code/modules/utilities/utilities_mod.f90

Lines 820 to 833 in e5cfb8b

	case (E_ALLMSG)
	if ( single_task ) then
	call log_it(trim(wherefrom)//' '//trim(text))
	if (present(text2)) call log_it(trim(wherecont)//' '//trim(text2))
	if (present(text3)) call log_it(trim(wherecont)//' '//trim(text3))
	else
	! this has a problem that multiple tasks are writing to the same logfile.
	! it's overwriting existing content. short fix is to NOT write ALLMSGs
	! to the log file, only stdout.
	write(*,*) trim(trim(wherefrom)//' '//trim(text))
	if (present(text2)) write(*,*) trim(trim(wherecont)//' '//trim(text2))
	if (present(text3)) write(*,*) trim(trim(wherecont)//' '//trim(text3))
	endif

single log file, not one per process.