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Title:
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Scaling of 3D engine workloads on modern multi-GPU systems
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Author:
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Roca Sancho, Jordi; Grossman, Mark
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica |
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Abstract:
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This work supposes a first attempt to characterize the 3D game workload running on commodity multi-GPU systems. Depending
on the rendering workload balance mode used, the intra and interframe dependencies due to render-to-texture require a number of
synchronizations that can significantly impact the scalability with multiple GPUs. In this paper, a proprietary analytical tool called EMPATHY has been used to evaluate, for a set popular DX9 games, the performance of both classic split frame and alternate frame rendering modes as well as combined modes supporting more than 4 GPUs. We have also evaluated the application of the early copy and concurrent update techniques together as alternative to delayed surface copy of render-to-texture surfaces, showing a 48% percent improvement for some workloads. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Informàtica::Infografia
-Àrees temàtiques de la UPC::Informàtica::Arquitectura de computadors::Arquitectures paral·leles
-Hardware architecture — Graphics processors
-EMPATHY (proprietary analytical tool) |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Association for Computing Machinery (ACM)
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