Newsletter April 2018 ()

Parallelized testing in simulation thanks to HPC

Our mission is to identify the challenges that our customers face and offer them the right solutions. The gain in complexity that has an increasing impact on the vehicle development process continues to be and will remain one of the key aspects. Whether the reason is the growing interaction between systems or the almost infinite number of possible test cases – it is evident that a larger number of tests must be conducted in the same time or less. The new release 7.0 of the CarMaker product family enables this by opening up the possibility of significantly accelerating the simulation thanks to the use of high-performance computing (HPC) clusters. While virtual test driving may already contribute to a considerable efficiency enhancement in development due to early testing, we are constantly searching for new options to increase the efficiency even more.

The advantages of HPC

The basic process comprises the parallel simulation of test scenarios. This results in an enormous reduction of the total computing time required for virtual test driving. Thanks to the openness of the integration and test platform CarMaker, the customer’s system under test – an algorithm for highly automated driving for instance – can be integrated via a variety of interfaces such as FMI or Simulink. CarMaker may be used parallel in the overall cluster as well, provided that the integrated model (e.g. an FMU) can be compiled for the HPC cluster.

Out of the box: HPC Light

Needless to say, the process described here works with a range of operating systems. This does not require an entire computer center, however. Parallel computing is also possible on a workstation computer with several CPU cores. The so-called HPC Light lends itself to this approach as an alternative HPC class. Here, the required scheduling is integrated into our tool Test Manager and the testing of manageable test catalogs is accelerated.

Parallel tests, multiple benefits

Users profit from major savings in time with this approach, no matter whether they use HPC or HPC Light. The two options offer different advantages that cater to individual requirements. Why not ask us about them?

The parallel use of several computers or processor cores makes vehicle development even faster and more efficient.