Uploaded July 2023 | Updated September 2026, 1 week ago

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My Webinar talk at ChEESE - Center of Excellence in Solid Earth on 28.06.2023.

Start coding OpenCL here: github.com/ProjectPhysX/OpenCL-Wrapper

Timestamps
0:00:00 Intro by Giorgio
0:02:17 Start
0:02:47 Who am I?
0:05:41 My OpenCL Project
0:07:14 OpenCL History
0:08:29 Big Advantages of OpenCL
0:10:40 CPU vs. GPU
0:13:45 OpenCL Memory Model
0:15:41 OpenCL Platform/Device/Context/Program
0:18:59 OpenCL Code Structure
0:20:53 OpenCL C Language
0:23:02 A simple OpenCL C Kernel
0:24:46 Functions in OpenCL C
0:25:26 OpenCL C++ API
0:26:55 Coalesced/Misaligned Memory Access
0:29:49 Branching in OpenCL - bad?
0:32:01 The Race Condition - a GPU-specific Bug
0:34:35 Roofline Model
0:45:08 OpenCL Workgroups
0:46:29 Register Pressure
0:49:52 Cache Tiling - local Memory Optimization
0:51:11 Multi-GPU with OpenCL
0:58:14 Case Study: Solid Voxelization of Triangle Mesh
1:05:29 Sime final Tipps
1:12:20 Question: GPU-aware MPI?
1:15:29 Question: OpenCL vs. CUDA Performance?
1:16:35 Question: How portable is OpenCL REALLY?
1:19:12 Question: Are all FLOPs created equal?
1:22:17 Question: How to use local Memory?
1:26:11 Question: How to profile OpenCL?
1:29:05 Question: Race Condition - Mutex?
1:32:13 Conclusions

#OpenCL #GPU #FluidX3D