您所在位置：主题：请问如何在fortran中计算程序运行时间
ynlcc
[专家分：0] 发布于 2011-05-02 09:58:00
program yy
double precision sum
real clock_start, clock_finish
call cpu_time (clock_start)
sum=254664+63+555+53+5566
write(*,*)'sum=',sum,"CPU Time = ",(clock_finish - clock_start), " seconds"
end
错误信息为：
--------------------Configuration: Text1 - Win32 Debug--------------------
Compiling Fortran...
C:\Documents and Settings\Administrator\桌面\数据\Text1.f90
C:\Documents and Settings\Administrator\桌面\数据\Text1.f90(7): warning FOR4265: symbol CLOCK_FINISH referenced but not set
Linking...
Text1.obj : error LNK2001: unresolved external symbol _CPU_TIME@4
Text1.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.
Text1.exe - 2 error(s), 1 warning(s)
double precision sum
real clock_start, clock_finish
call cpu_time (clock_start)
sum=254664+63+555+53+5566
write(*,*)'sum=',sum,"CPU Time = ",(clock_finish - clock_start), " seconds"
end
错误信息为：
--------------------Configuration: Text1 - Win32 Debug--------------------
Compiling Fortran...
C:\Documents and Settings\Administrator\桌面\数据\Text1.f90
C:\Documents and Settings\Administrator\桌面\数据\Text1.f90(7): warning FOR4265: symbol CLOCK_FINISH referenced but not set
Linking...
Text1.obj : error LNK2001: unresolved external symbol _CPU_TIME@4
Text1.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.
Text1.exe - 2 error(s), 1 warning(s)