debugging with sdm

PTP

Parallel Tools Platform

The Parallel Tools Platform (PTP) is an Eclipse extention for paralleldevelopment. Paired with Mojave, it is useful for debugging parallelCactus applications.

Obtaining PTPSoftware.

Click Help - Install New Software,select Available Software Sites, andin the text filter type PTP. Select thefirst site from the list.

The Cactus team Introduction to the Cactus Framework Mar 30 2011

PTP

Parallel Tools Platform

The Parallel Tools Platform (PTP) is an Eclipse extention for paralleldevelopment. Paired with Mojave, it is useful for debugging parallelCactus applications.

Installing PTPSoftware.

Click Help - Install New Software,select Available Software Sites, andin the text filter type PTP. Select thefirst site from the list.

Back in the software install dialogue,type in the text filter PTP, select thefirst site, mark the three softwarepackages from the list, then click Next.


PTP

Building the Scalable Debug Manager

Installing PTPSoftware.

In a terminal window, locate the pluginsdirectory under Eclipse.

In that directory, locate a platformspecific directory similiar to one ofthese:

org.eclipse.ptp.linux.x86 4.0.6.201102161000org.eclipse.ptp.linux.x86 64 4.0.6.201102161000org.eclipse.ptp.macosx.ppc 4.0.6.201102161000org.eclipse.ptp.macosx.x86 4.0.6.201102161000org.eclipse.ptp.aix.ppc 4.0.6.201102161000...

Change to that directory, then type ”sh./BUILD”.


PTP

MPICH2

MPICH2 is a standard for the Message Passing Interface (MPI) which canbe used in the development of Cactus applications.

Message PassingDaemon.

Install the mpich2 and mpich2-develpackages.

Ensure $PATH includes the new mpich2bin/ folder.

Re-build Cactus for parallel architecture.

Run mpd in a terminal to start themessage passing daemon.


PTP

MPICH2 as a Resource Manager

To use MPICH2 as a Resource Manager in Eclipse, it must first be addedto the list of Resource Managers.

Viewing ResourceManagers.

Go to Window - Show View - Other.


PTP



Viewing ResourceManagers.

Go to Window - Show View - Other.

Select Resource Managers underParallel Tools and click OK.


PTP



Adding a ResourceManager.

Select the Resource Managers tab,right-click in the area beneath it, thenclick Add Resource Manager.


PTP



Adding a ResourceManager.

Select the Resource Managers tab,right-click in the area beneath it, thenclick Add Resource Manager.

Select MPICH2 from the list, clickNext, then Finish.


PTP


Now it is time to start MPICH2.

Running a ResourceManager.

Right-click the MPICH2 resourcemanager, then select Start ResourceManager. If all goes well, the bulb tothe left of the MPICH2 resourcemanager entry will turn green.


PTP

Configuring the Debugger

The dubugger requires some configuration before use.

Locating theDebugger Options.

Go to Run - Debug Configuration.


PTP


The dubugger requires some configuration before use.

Adding a NewConfiguration.

Go to Run - Debug Configuration.

Under Parallel Application, right-clickto add a new configuration.


PTP


The dubugger requires some configuration before use. The information forthe tabs Application, Arguments, Resources, and Debugger must befilled in.

Resources.

Select MPICH2 from the drop-downbox of resources.


PTP



Application.

Browse for the project.

Browse for the Cactus/exe/cactus Cfg1executable located under the workbenchdirectory within the project directory.


PTP



Arguments.

Specify for the arguments list thelocation to the .par file to be used. Itshould be located in Cactus/par underthe workbench directory within theproject directory.


PTP



Debugging.

Hit the double-right arrow next to thetabs to bring up the debug tab.

Select SDM from the list of debuggersand Browse for the executable.

Once finished, click the Debug button.


PTP

Running the Debugger

The debugger can be run now.

The Debugger.

Hit the Step-Over-Group button tocause the program to advance and stepover the current function.

Hit the Step-Into-Group button tocause the program to advance and stepinto the current function.

Hit the Resume button to allow theprogram to advance to the end or thenext breakpoint.


PTP


Variables can be viewed in the variables screen.

The Debugger.

The PTP Debug view allows you tographically browse the current variablesavailable for viewing. Other typical

Dark blue highlight shows which line iscurrently executing.


PTP


Setting Breakpoints

The Debugger.

Right click on a line number to toggle abreakpoint.

In the example at left, the green ball atline 70 is an example of a breakpoint.


debugging with sdm

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