| View Issue Details [ Jump to Notes ] | [ Print ] |
| ID | Project | Category | View Status | Date Submitted | Last Update |
| 0009408 | ParaView | Feature | public | 2009-08-12 13:02 | 2010-01-22 15:50 |
|
| Reporter | Ken Moreland | |
| Assigned To | Utkarsh Ayachit | |
| Priority | urgent | Severity | minor | Reproducibility | have not tried |
| Status | closed | Resolution | fixed | |
| Platform | | OS | | OS Version | |
| Product Version | | |
| Target Version | 3.8 | Fixed in Version | 3.8 | |
|
| Summary | 0009408: Enable zlib compression for image delivery |
| Description | Burlen Loring recently sent an email to the ParaView developer mailing list about comparisons of image transfer rate between using the current SQUIRT algorithm and then using zlib instead. He found that zlib outperformed SQUIRT in both compression rate and overall rendering rate. Thus, we should add zlib as an option (probably the default) for image delivery compression. If it really outperforms SQUIRT in all cases (including higher speed network connections), then perhaps it should replace SQUIRT altogether.
Burlen also noted that performing the SQUIRT-type color reductions also helped zlib be more effective. It may be worthwhile to do the same bit masking before the zlib compression.
A document detailing Burlen's performance measurements is attached. |
| Additional Information | Efficient remote interactivity is paramount to the near-term needs for large scale visualization at Sandia. Thus, I place a high priority for implementing this for ParaView 3.8. |
| Tags | No tags attached. |
|
| Project | |
| Topic Name | |
| Type | |
|
| Attached Files |  PV3_remote_interactivity.pdf [^] (277,407 bytes) 2009-08-12 13:02 |
|