MANUAL DEV C 4.9.9.2 PDF

tutorial uses Dev-C++ on Windows 7 (configuration in the computer printing characters on the screen (output) with proper read and write instructions. Mar 16, Full-featured Integrated Development Environment (IDE) for the C/C++ programming language. It uses Mingw port of GCC (GNU Compiler. In this tutorial, I will be using Dev-C++ beta () with Mingw/GCC. Select this by clicking the SourceForge link underneath the title. The version is outlined .

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Using a debugger 4. Tiny C Compiler Portland Group Fortran Win64 compiler This document explains how to compile and debug applications for DeinoMPI with examples from various compilers. Compile your MPI applications using the following information. Link your C applications with mpi. There are several versions of the Fortran link libraries to support common name mangling and calling conventions used by various Fortran compilers. The following libraries contain the specified formats:. All capital external names and all lower case external names with a trailing underscore.

Functions use the C calling convention. The Intel compiler uses this format as of the 8. The Portland Group compiler uses the lower case format.

All capital external names. Functions use the stdcall calling convention. All lower case external names with two trailing underscores. Debugging parallel applications is hard but there are a few options provided by DeinoMPI that can help.

Whenever you add a printf statement, make sure to add a call to fflush stdout ; after the printf statement or statements. It is important to do so because the output of applications is buffered by default and must be flushed if you want to see the output immediately. This can be useful if your application hangs and you are not sure why. You can click the Show Messages button and see what messages are in the internal message queues for each process.

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49.9.2 Two message types can show up. There can be posted messages where a process is expecting a message but has not received it yet. And there can be messages that have been received and manjal but not matched yet. But it is easy to understand these messages because they are marked with type information. With this option turned on each MPI function call is logged to manuak internal ring buffer. When you click the Show Messages button the last N calls will be printed out for each process.

Set this value to a number between 1 and 32 to limit the depth of MPI calls per process saved. It is limited in its debugging ability though because applications must run to completion in order to generate log files.

The primary goal of Jumpshot is to view the runtime patterns of an MPI application and then analyze these patterns to see if changes can be made to the code to optimize the application. Jumpshot has very well developed tool options for this kind of work.

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See the Jumpshot manual for information. There are at least two ways you can use a debugger to step through your parallel processes. These methods have been tested using the Visual Studio debugger but may also work with other debuggers. If your application has a natural wait state then you can simply attach the debugger when the processes are idle. Otherwise you can add code to the beginning of your application to cause it to wait. When you start the application using mpiexec.

Then you will be able to step through the process.

You could also make this Sleep block depend on a command line parameter so that you can attach to a specific process instead of all of the processes. Depending on the user privileges you may get Access Denied errors when trying to attach to processes started by mpiexec. If this is the case you can use the —localonly flag to start the processes: You will set up the environment for each process and start the debugger for each process.

In order to debug processes directly without attaching to running processes you will need to set up the environment variables for each process. You can set the environment variables, start the debugger and then step through the process.

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The smallest set of variables required to be set are: Here is a batch file that can be run to set the variables for each process:. Save this text as setmpi2.

Bring up a command prompt for each process in the job. Bring up two command prompts and execute the following in the first one: Then execute this in the second one: The first prompt will be rank 0 in a job of size 2. The second prompt will be rank 1 of size 2. Then from the each command prompt execute: Substitute the name of your application for myapp. At this point you will have two debuggers open. Now you can step through each process independently using the two debugger windows.

There is one requirement to stepping through the processes. NET or newer you can use the example projects provided in the examples directory as a guide to creating your own projects. The dialog boxes are identical for setting the include and library paths.

There are a couple things to note if you choose to create a console application using the default wizard settings. Also the include of mpi. The Intel compiler can be integrated into Developer Studio. So if you have the Intel compiler integrated into the developer studio suite then you can follow the instructions from the Developer Studio section to create DeinoMPI applications. Set up the include and library directories as described in the Developer Studio section. For Fortran applications it is located under the fortran:: Cygwin users can use gcc and g77 to compile DeinoMPI applications.

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Link C applications with mpi. In order to run your application you must have the cygwin dll in the system path or in the same location as your executable. Otherwise the application will not load. This is important because the process manager does not use the user path so even though you can run your application as a single process within the bash shell it will fail when you try to run it with mpiexec.

The Minimalist GNU for Windows environment allows you to create applications that do not depend on any dynamic libraries other than the Windows system libraries. This is an advantage over the cygwin environment because in order to get your cygwin DeinoMPI application to run you have to copy the cygwin1.

MINGW applications do not depend on any companion dlls. It is recommended that you download the latest version but the names of the packages used to test DeinoMPI are provided here for reference. On the test machine all the files were unzipped to C: From within the MSYS shell the example cpi application was compiled and run using mpiexec: The C compiler from OpenWatcom was tested.

The sample cpi program was compiled from the command line. ENV in the root Watcom directory. Change to the DeinoMPI directory and execute the following command:. Then execute the example using mpiexec.

This compiler almost worked. Then it complained about the extern declarations so these two lines had to be removed:. In order to link with the MPI library an export file had to be created. The compiler was installed in the default location and the configuration files were created in accordance with the readme. There was a mistake in the f in that the configuration files need to be place in the bin directory and not the root directory.

This command created the import library:.

Then you can compile the example cpi application from a command prompt with this command:. Then the icpi sample application was created from a command prompt.

The Digital Mars C compiler cannot read the mpi. With the import library created icpi could be compiled with the following command:. The lcc-win32 compiler package version 4. It was installed in the default location C: The compiler cannot link with the DeinoMPI import library, mpi.

Creating the import library took two steps:. Once the import library was devv then the sample application could be compiled:. The Pelles C compiler can be found in various places, http: Compiling is straightforward if the cc compiler driver is used. Here is the command line used to compile icpi.

The single user evaluation package of the Salford Fortran95 compiler version 4.