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TOTALVIEW Majdi Baddourah June 4, 2002 NERSC. Objective How to use totalview MPI codes OpenMp Codes.

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Presentation on theme: "TOTALVIEW Majdi Baddourah June 4, 2002 NERSC. Objective How to use totalview MPI codes OpenMp Codes."— Presentation transcript:

1 TOTALVIEW Majdi Baddourah June 4, 2002 NERSC

2 Objective How to use totalview MPI codes OpenMp Codes

3 TOTALVIEW Debugging tool Supported by ETNUS Works very well most of the time Line mode and x-windows mode Used to debug FORTRAN and C

4 Usage module load totalview mpxlf –g main.f totalview poe –a./a.out –nodes 2 –procs 32

5 TOTALVIEW Window

6 Program Window

7 File Options

8 Process Options

9 Action Point Options

10 Tools Options

11 POE Window

12 Source Code Window

13 Set Breakpoint right mouse click left mouse click

14 Breakpoint options

15 Start Exectution left mouse click

16 See Other Processors left mouse click

17 Setting Evaluation Function

18 right mouse click

19 Evaluation Function

20 Evaluation Functions

21

22 right mouse click

23 Variable Value

24 Looking at the vector x

25 Looking at a Slice of an Array

26 Looking at Large Arrays parameter(n= ) real*8 a(n) do i = 1, n a(i) = float(i) enddo write(*,*)' a(',n,')=',a(n) stop end You can view the content of the variable A without problems. You can not look at statistics or visualize the variable.

27 Message Queue

28 C Program

29

30 Structure Value

31 Looking at Structure

32 Watch Point

33 Unconditional Watchpoint

34 Checking the Value

35 Attaching a Running Job Run Totalview using this command totalview & poe./a.out –nodes 2 –procs 32 Click on the poe job

36 Attaching a Job

37 Running the Job Click Go

38 Detaching a Job Click detach

39 OpenMp setenv OMP_NUM_THREADS 4 module load totalview

40 Compile xlf90_r -o a.out -g -qfixed -qsmp=omp -qstrict nowait.f -bmaxstack:0x Dive on J

41 Compile with noopt xlf90_r -o a.out -qfixed -qsmp=omp -g -qstrict nowait.f -qsmp=noopt -bmaxstack:0x

42 OpenMp right mouse click Click go

43 Threads 3 Dive on b

44 Shared variables

45 OpenMp Dive on j

46 Private Variables

47 TOTALVIEW X-Resources totalview*searchPath:/usr/common/homes/m/majdi/NETCDF4/src/libsrc, \ /usr/common/homes/m/majdi/NETCDF4/src/fortran, \ /usr/common/homes/m/majdi/NETCDF4/src/f90, \ /usr/common/homes/m/majdi/NETCDF4/src, \ /scratch/scratchdirs/majdi, /scratch/scratchdirs/majdi/NimRot


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