The numeric_diff program. More...

Functions/Subroutines
program	numeric_diff
	Compare two files containing numerical arrays and check whether they are the same as each other, to within the specified tolerance. More...

subroutine	print_help ()

subroutine	print_errors (abs_err, rel_err)

Detailed Description

The numeric_diff program.

Definition in file numeric_diff.F90.

Function/Subroutine Documentation

◆ numeric_diff()

program numeric_diff

Compare two files containing numerical arrays and check whether they are the same as each other, to within the specified tolerance.

If the arrays in the two files are of different sizes then they are automatically different. Otherwise they are the same if

$| A_1 - A_2 |_2 < \verb+abs_tol+$

and

$\frac{| A_1 - A_2 |_2}{| A_1 |_2 + | A_2 |_2} < \verb+rel_tol+$

and are otherwise different. Setting abs_tol or rel_tol to zero skips the corresponding test.

If the files are the same then "<tt>files match within the given tolerances</tt>" is printed on stdout, otherwise "<tt>files differ</tt>" is printed, followed by the absolute and relative differences, as above, or a message describing the difference. The files will be reported as different if they have a different pattern of end-of-lines and end-of-files, or if they have whitespace in different places (amount of whitespace is irrelevant).

The exit status of the program is:

0 if the files are the same
1 if the files are different
3 if an error occurred

Definition at line 33 of file numeric_diff.F90.

◆ print_errors()

subroutine numeric_diff::print_errors	(	real(kind=dp), dimension(:,:)	abs_err,
		real(kind=dp), dimension(:,:)	rel_err
	)

Parameters

abs_err	Absolute errors.
rel_err	Relative errors.

Definition at line 293 of file numeric_diff.F90.

◆ print_help()

subroutine numeric_diff::print_help

Definition at line 262 of file numeric_diff.F90.

Functions/Subroutines

Detailed Description

Function/Subroutine Documentation

◆ numeric_diff()

◆ print_errors()

◆ print_help()