Merge pull request wannier-developers#266 from qiaojunfeng/io_wallclo…

…cktime negative return value of io_wallclocktime
manxkim · Apr 20, 2019 · dd2db38 · dd2db38
2 parents 9a27337 + 9725aae
commit dd2db38
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Showing 3 changed files with 6 additions and 3 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -78,6 +78,7 @@ Moreover, it generates a new file `seedname_band.labelinfo.dat` with information
 
 - Fix berry_task check for morb, and add check for kpoint_path block in parameters [[#258]](https://github.com/wannier-developers/wannier90/pull/258)
 
+- Use 64 bit integer in io_wallclocktime [[#266]](https://github.com/wannier-developers/wannier90/pull/266)
 
 
 

diff --git a/src/constants.F90 b/src/constants.F90
@@ -29,6 +29,8 @@ module w90_constants
   private
 
   !~~ GENERIC CONSTANTS ~~!
+  integer, parameter, public          :: i64 = selected_int_kind(15)
+  !! 64bit integer
 !aam_2012-04-11; fix to run on MacBook Air
   integer, parameter, public          :: dp = kind(1.0d0)
   !! double precision

diff --git a/src/io.F90 b/src/io.F90
@@ -425,13 +425,13 @@ function io_wallclocktime()
     ! Returns elapsed wall clock time in seconds since its first call  !
     !                                                                  !
     !===================================================================
-    use w90_constants, only: dp
+    use w90_constants, only: dp, i64
     implicit none
 
     real(kind=dp) :: io_wallclocktime
 
-    integer :: c0, c1
-    integer :: rate
+    integer(kind=i64) :: c0, c1
+    integer(kind=i64) :: rate
     logical :: first = .true.
     save first, rate, c0
Original file line number	Diff line number	Diff line change
Expand Up		@@ -78,6 +78,7 @@ Moreover, it generates a new file `seedname_band.labelinfo.dat` with information

		- Fix berry_task check for morb, and add check for kpoint_path block in parameters [[#258]](https://github.com/wannier-developers/wannier90/pull/258)

		- Use 64 bit integer in io_wallclocktime [[#266]](https://github.com/wannier-developers/wannier90/pull/266)



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