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Our high performance computer architecture consists of CPUs and GPUs. The performance of a CPU/GPU architecture is optimized by using CPUs for the decision making, communications, data streaming and distribution of the computational load to the GPUs, and using GPUs for the actual numerical hydrodynamical calculations.

We demonstrate the capabilities of our system by running a colliding jet simulation using a GPU-accelerated Adaptive-MEsh-Refinement hydrodynamical parallel code (GAMER) developed at the National Taiwan University.

In Figure 1 We show the total energy (kinetic plus thermal) projected to the main plane of the jet. The jets are injected on the left hand side and moving to the right. The jet Mach number, Mj, of the slower jet was 4.4 (green color, upper left hand side traveling downward). The faster jet with Mj = 7.9, and therefore higher total energy, is marked with green-orange color (lower jet traveling upward). This is not a head-on collision, the jets are offset by about half of their diameter.


Figure 1 Total energy projected to the main plane of the jet. The jets are moving from left to right.

In Movie 1 we show the total energy (kinetic plus thermal) projected to the main plane of the jet. The box size, in simulation units, were 20x100x20.


Movie 1> Total energy (kinetic plus thermal) projected to the main plane of the jet.

Movie 1