content_image/979887.jpg
## 7.3.1 IBM ESSL Compilation in Fortran, IBM XL C/C++, and GCC/G++ 

The IBM ESSL subroutines are callable from programs that are written in Fortran, C, and C++. Table 7-6, Table 7-8 on page 175, and Table 7-10 on page 176 list how the compilation on Linux depends on the type of IBM ESSL library (serial, SMP, or SMP CUDA); environment (32-bit integer and 64-bit pointer or 64-bit integer, or 64-bit pointer); and compiler (XLF, IBM XL C/C++, or gcc/g++) that is used. 

<img src='content_image/979887.jpg'>

To use the Fastest Fourier Transform in the West (FFTW) wrapper libraries, include the header file fftw3.f , which contains the constant definitions. To use these definitions, complete one of the following tasks: 

GLYPH<SM590000> Add the following line to your Fortran application: include "fftw3.f” 

GLYPH<SM590000> Add the fftw3.f  header file in your application. 

