Basic Code Compilation
Serial Code
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module load intel icc -o hello.bin hello.c ifort -o hello.bin hello.f90 icpc -o hello.bin hello.cpp |
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module load gcc gcc -o hello.bin hello.c gfortran -o hello.bin hello.f90 g++ -o hello.bin hello.cpp |
Parallel Code with MPI
Examples are for Intel MPI with Intel and GNU compilers, respectively. We recommend using the specific compiler wrappers as follows.
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module load gcc module load impi mpigcc -o hello.bin hello.c mpif90 -o hello.bin hello.f90 mpigxx -o hello.bin hello.cpp |
Parallel Code with OpenMP
The syntax of Intel and GNU options differs slightly.
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module load gcc gcc -fopenmp -o hello.bin hello.c gfortran -fopenmp -o hello.bin hello.f90 g++ -fopenmp -o hello.bin hello.cpp |
Hybrid Code with MPI and OpenMP
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module load intel module load impi mpiicc -qopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.c mpiifort -qopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.f90 mpiicpc -qopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.cpp |
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module load gcc module load impi mpigcc -fopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.c mpif90 -fopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.f90 mpigxx -fopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.cpp |
MPI, communication libraries, OpenMP
We provide several communication libraries:
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OpenMP support ist built in with the compilers from Intel and GNU.
Important compiler flags
To make full use of the vectorizing capabilities of the CPUs, AVX512 instructions and the 512bit ZMM registers can be used with the following compile flags with the Intel compilers:
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-march=skylake-avx512 |
Using the Intel MKL
The Intel® Math Kernel Library (Intel® MKL) is designed to run on multiple processors and operating systems. It is also compatible with several compilers and third party libraries, and provides different interfaces to the functionality. To support these different environments, tools, and interfaces Intel MKL provides multiple libraries from which to choose.
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