Archive for the ‘Tools’ Category

Using nm to troubleshoot linking problems

March 2, 2011 by · Comments Off on Using nm to troubleshoot linking problems
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When one starts using libraries, an problem that happens often is a linking error. Compilation went through but the linker complains that it cannot find something. A useful tool in this respect is nm and I will describe below how one can employ it. I will do it with my gcc example Compiling and Linking: Simple […]

NumPy and SciPy

September 3, 2010 by · Comments Off on NumPy and SciPy
Filed under: Dense Matrices, Tools 
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At IMTEK, I have been working with Mathematica and I should say that it is a pretty good tool for fast prototyping. The only disadvantage is that it is a commercial tool and it is necessary to purchase a license. As a result, when I finished my work at IMTEK, I have decided to look what […]

Linkers and Loaders

August 23, 2010 by · Comments Off on Linkers and Loaders
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John R. Levine, Linkers and Loaders, 1999 Linking is considered to be simple but quite many problems happens exactly at this stage. Especially when it is necessary to work with many libraries, the life gets complicated. The book gives a thorough overview on the linking process, what is linking and what one can expect at this […]

Compiling BeBOP Sparse Matrix Converter under Cygwin

July 20, 2008 by · Comments Off on Compiling BeBOP Sparse Matrix Converter under Cygwin
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The text below is now obsolete, as in the newer version of BEBOP, the compiling under Cygwin goes without a problem. See Compiling BeBOP Sparse Matrix Converter under Cygwin. BeBOP Sparse Matrix Converter http://bebop.cs.berkeley.edu/smc/ contains an executable that allows us to convert between different sparse matrix formats. I was given a file in the Harwell-Boeing […]

Using GNU Make to Automate the Build

March 24, 2008 by · Comments Off on Using GNU Make to Automate the Build
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In the simple example considered above (see example with gcc and example with VC++) there were just a few commands to execute. A real project may contain much more files and libraries. A conventional way to automate build is to use make that reads the description in makefile and then executes the command accordingly. Let […]

Using Fortran Subroutines from C++

March 24, 2008 by · Comments Off on Using Fortran Subroutines from C++
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A compiler converts a code to an object file and then a linker links different object files with each other. As a result, it is possible to mix programming languages in one project. What is just necessary is to know conventions accepted in different programming languages. Below there is a short description on how one […]

Text Editor: Vim

March 24, 2008 by · Comments Off on Text Editor: Vim
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We need a text editor to edit files. It is assumed that you already have one. If not, I could recommend you Vim that is available for free at http://www.vim.org/. In my view it fits well the Unix environment. It is easy to install Vim. Just download self-installing executable gvim71.exe and run it. When it […]

Compiling and Linking: Simple Example with Visual C++

March 24, 2008 by · Comments Off on Compiling and Linking: Simple Example with Visual C++
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The goal of this text is to compare the compilation process between Visual C++ and gcc (see Compiling and Linking: Simple Example with gcc). The process is quite similar but behavior of the tools in Visual Studio is a bit different. The librarian in Visual Studio is link and the compiler is cl. The sample […]

Using Microsoft Visual C under Gygwin

March 2, 2008 by · Comments Off on Using Microsoft Visual C under Gygwin
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It is possible to run Microsoft compiler from console: cl, link, lib, and other tools. However, I find the cmd environment (command tool supplied with Windows) rather primitive and prefer to work under Cygwin environment. Here it is also possible to use command line tools from the Microsoft Visual Studio but it is necessary to […]

Compiling and Linking: Simple Example with gcc

March 2, 2008 by · Comments Off on Compiling and Linking: Simple Example with gcc
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The goal of this text is to make a small introduction to the compilation process. We will make a library and then link the application code with the library. It is assumed that the librarian is ar and the compiler is gcc. The aim is to obtain rough understanding what steps will be necessary when […]

How to Install Cygwin 1.5

March 2, 2008 by · Comments Off on How to Install Cygwin 1.5
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Cygwin (http://www.cygwin.com/) is software that allows us to bring Unix flavor to Windows. This is a step-by-step tutorial on how to install Cygwin along with gcc and make. Provided that the number of packages to install is close to described below, it will be necessary to download about 35 Mb of files from Internet. The […]