w90_io Module

Module to handle operations related to file input and output.

Uses

- w90_constants
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Variables

Type	Visibility	Attributes		Name		Initial
character(len=10),	public,	parameter	::	w90_version	=	'4.0.3 '	Label for this version of wannier90

Functions

public function io_time()

Returns elapsed CPU time in seconds since its first call. Uses standard f90 call

Arguments

None

Return Value real(kind=dp)

public function io_wallclocktime()

Arguments

None

Return Value real(kind=dp)

Subroutines

public subroutine io_stopwatch_start(tag, timers)

Stopwatch to time parts of the code

Arguments

Type	Intent	Optional	Attributes		Name
character(len=*),	intent(in)			::	tag	Which stopwatch to act upon Read more…
type(timer_list_type),	intent(inout)			::	timers

public subroutine io_stopwatch_stop(tag, timers)

Stopwatch to time parts of the code

Arguments

Type	Intent	Optional	Attributes		Name
character(len=*),	intent(in)			::	tag
type(timer_list_type),	intent(inout)			::	timers	Which stopwatch to act upon Read more…

public subroutine io_print_timings(timers, stdout)

Output timing information to stdout

Arguments

Type	Intent	Optional	Attributes		Name
type(timer_list_type),	intent(in)			::	timers
integer,	intent(in)			::	stdout

public subroutine io_commandline(prog, dryrun, post_proc_flag, seedname)

Parse the commandline

Arguments

Type	Intent	Optional	Attributes		Name
character(len=:),	intent(in),		allocatable	::	prog	Name of the calling program
logical,	intent(out)			::	dryrun	Have we been asked for a dryrun
logical,	intent(out)			::	post_proc_flag	Have we been asked for a dryrun
character(len=:),	intent(inout),		allocatable	::	seedname

public subroutine io_date(cdate, ctime)

Returns two strings containing the date and the time in human-readable format. Uses a standard f90 call.

Arguments

Type	Intent	Optional	Attributes		Name
character(len=9),	intent(out)			::	cdate	The date
character(len=9),	intent(out)			::	ctime	The time

public subroutine prterr(error, ie, istdout, istderr, comm)

Arguments

Type	Intent	Optional	Attributes		Name
type(w90_error_type),	intent(inout),		allocatable	::	error
integer,	intent(inout)			::	ie
integer,	intent(in)			::	istdout
integer,	intent(in)			::	istderr
type(w90_comm_type),	intent(in)			::	comm

public subroutine print_error_halt(error, ie, istdout, istderr, comm)

Arguments

Type	Intent	Optional	Attributes		Name
type(w90_error_type),	intent(inout),		allocatable	::	error
integer,	intent(inout)			::	ie
integer,	intent(in)			::	istdout
integer,	intent(in)			::	istderr
type(w90_comm_type),	intent(in)			::	comm