How does SIESTA perform on different supercomputer architectures?
See the following article to know about the performance of SIESTA on different architectures,
The article reports the scaling and timing tests of SIESTA. The tests are performed on six large-scale supercomputers belonging to the PRACE Tier-0 (http://www.prace-ri.eu) network with four different architectures: Cray XE6, IBM BlueGene/Q, BullX, and IBM iDataPlex.