Name
Title | ||
|---|---|---|
A unified infrastructure for parallel out-of-core isosurface extraction and volume rendering of unstructured grids |
Abstract | ||
|---|---|---|
We present a unified infrastructure for parallel out-of-core isosurface extraction and volume rendering of large unstructured grids on distributed-memory parallel machines. We parallelize the out-of-core isosurface extraction algorithm of Chiang et al. (1998) and the out-of-core ZSweep technique (Farias and Silva, 2001) for direct volume rendering, using the meta-cell technique as a unified underlying building block. Our one-time preprocessing first partitions the dataset into meta-cells that are stored in disk. From the meta-cells, we build a BBIO tree in disk, which can be used to speed up isosurface extraction, and a bounding-box file in disk, which is used for direct volume rendering. At run-time, we use a simple self-scheduling scheme to achieve load balancing among the processors. We perform several experiments on a sixteen-node cluster of PCs connected by a gigabit Ethernet, using datasets as large as 6.6 million cells. For the larger datasets, we have found that both our isosurface extraction and direct volume rendering approaches are perfectly scalable up to sixteen nodes. |
Year | DOI | Venue |
|---|---|---|
2001 | 10.1109/PVGS.2001.964405 | IEEE Symposium on Parallel and Large-Data Visualization and Graphics |
Keywords | DocType | ISBN |
meta-cell technique,ethernet,distributed-memory parallel machines,direct volume rendering,scientific visualization,larger datasets,bbio tree,distributed memory systems,bounding-box file,volume rendering,parallel computation,distributed-memory parallel machine,isosurface extraction,resource allocation,rendering (computer graphics),parallel out-of-core isosurface extraction,self-scheduling scheme,out-of-core isosurface extraction algorithm,data visualisation,direct volume rendering approach,workstation clusters,out-of-core zsweep technique,large unstructured grid,sixteen-node pc cluster,load balancing,unstructured grids,unified infrastructure,parallel computer,unstructured grid,load balance,distributed memory | Conference | 0-7803-7223-9 |
Citations | PageRank | References |
22 | 0.92 | 42 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yi-jen Chiang | 1 | 503 | 38.21 |
| Ricardo C. Farias | 2 | 136 | 14.74 |
| Cláudio T. Silva | 3 | 5054 | 290.90 |
| Bin Wei | 4 | 221 | 24.35 |