Filters to consider converting to vtkm – visitusers. org

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Did broad brush study of array-based expressions (derived variables) using a few different execution strategies; round-trip (aka naive), staged and fused. Euro usd rate The differences in these strategies ultimately impact memory requirements of target device (CPU or GPU). Silver price chart 5 year Round-trip demonsrated best memory behavior but worst execution performance (due to all the data movement between CPU and target device).


Usd to ringgit malaysia Staged demonstrated worst memory behavior and mid-level performance. British pound exchange rate history Fused demonstrated best memory behavior and excellent performance. Stock market definitions glossary In fact, auto-fused was typically not any worse than manually fused kernels. Futures and options trading meaning Memory requirements of fused approach dependent on maximum fan-out in dataflow network representing kernel execution. Conversion rate aud to usd Analysis of the dataflow network for expression execution enables automated JIT fusing of kernels for simple expressions. 1 nzd to usd Approach taken not currently suitable/adaptable to support all of VisIt’s expressions (function expressions are problematic here).

Might it be possible to analyze dataflow network for task-level parallelism (much like parallel Make does for build dependencies), enabling a network to be decomposed for task-level parallelism?

EAVL’s execution model is not like a VTK pipeline. Dollar and rupee exchange rate You can specify a bunch of kernels and it will run them one after the other. Secret messages in logos But, you don’t create long, complex pipelines and then do something like an update operation on them and then have a contract flow down and a bunch of execution occur.

Deciding individual expressions difficulty in mapping to GPU is somewhat easy. Rub usd However, managing long expressions involving many sub-terms in a way that doesn’t result in a lot of data transfer between CPU and GPU is at least in the moderately difficult if not very difficult category.

Some expressions, like global-nodeid, don’t really make sense to even do on a GPU. Usd to chf exchange rate OTOH, if we don’t make them available on a GPU and they appear in the middle of an expression, the lack of availablility on the GPU would wind up forcing CPU/GPU data transfer for no good reason.

The user may want our typically Always/Auto/Never three-way choice for controlling whether VisIt uses GPUs. Gender articles It may not make sense to use GPUs always when they are available. Currency converter usd to aed My guess is that dataset size will play a role in whether GPU will result in a boost in performance. Usd to aud rate Maybe part of the VisIt install process on a given platform can perfrom some GPU tests to determine minimum dataset size before GPUs should be used.

Regarding the mesh quality expressions, I suggested we investigate if there is ongoing development on the Verdict library and, in particular, if it might be being enhanced for GPU execution. Futures market news First, I learned its very difficult to find a version of Verdict at Sandia’s pages. Convert to binary code It appears it might be available there embedded in other products such as Verde (which is available as a binary turnkey tool) and Mesquite. Usd to inr forecast 2015 However, I learned that Verdict is also now available in VTK ( http://www.vtk.org/Wiki/VTK/mesh_quality) as the vtkMeshQuality filter. Us stock futures cnn money In all cases, it was difficult to determine if Verdict is still under active development or supported.

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