Lucas, JanAndersch, MichaelÁlvarez-Mesa, MauricioJuurlink, Ben2017-10-242017-10-2420151544-3566https://depositonce.tu-berlin.de/handle/11303/6923http://dx.doi.org/10.14279/depositonce-6262Temporal SIMT (TSIMT) has been suggested as an alternative to conventional (spatial) SIMT for improving GPU performance on branch-intensive code. Although TSIMT has been briefly mentioned before, it was not evaluated. We present a complete design and evaluation of TSIMT GPUs, along with the inclusion of scalarization and a combination of temporal and spatial SIMT, named Spatiotemporal SIMT (STSIMT). Simulations show that TSIMT alone results in a performance reduction, but a combination of scalarization and STSIMT yields a mean performance enhancement of 19.6% and improves the energy-delay product by 26.2% compared to SIMT.en004 Datenverarbeitung; InformatikGPUsbranch divergencescalarizationtemporal SIMTArticle