A 3D benchmarking blog that do not even look at the frame rate ... [
in recent weeks I have been blogging about the tools and factors to consider when benchmarking and GPU sharing assessment using new technologies vGPU on Citrix XenServer and XenDesktop. I have seen many users looking frame rate (fps) metric to compare the technologies. This blog aims to step back and consider what the appropriate benchmarks are and how different technology models are particularly justifiable regarding their continued support for OpenGL and DirectX APIs.
thereA few months Gartner analyst and End User Computing Enthusiast Gunnar Berger put on a comparison of GRID ™ vGPU from the vSGA technology VMware using the reference turbine Redway3d, which is particularly CAD concentrated. However, the game marks such as Unigine Tropic are actually much lighter on the use of GPU and CPU on quite heavy so you can hide a lot of limitations and differences between the technologies. I recently was looking at more oriented CAD marks to complete Unigine while evaluating the differentiators in vGPU other technologies, in particular to CAD-related uses and 3D visualization model.
As expected, GRID vGPU did indeed shine oriented CAD reference Redway3d. What is surprising is how poorly vSGA performed, the video is here. Gunnar sometimes had to resort to the acceleration of video vSGA tests 10x times to follow vGPU. Something went very wrong in this vSGA reference. It was a running test on one of the top GPU Dell servers, the R720, with lots of RAM and CPU and an NVIDIA graphics card K2. How such a high-quality material could frequently used to support hundreds of VDI users, leading to a test where an average enough, benchmark standard CAD failed to support a single user?
To be fair to VMware clearly make vSGA not suitable for CAD applications the most serious, and adapted to "review and cases of light use" only and also clearly document these applications GPUs are not certified provider for use with vSGA. Nevertheless, I would have expected the theoretical behavior of synthetic model pilot vSGA for sharing GPU to be better
Gunnar made an interesting observation in his video. he had been unable to get to work with vSGA Redway3d Turbine in XenDesktop. This was something that we wanted to check. When we looked into it, we could not find a problem in the battery Redway3d XenDesktop but seemed unable to use synthetic drivers vSGA VMware. Given how badly vSGA seemed to behave with such high specification test bench, he did wonder if it was compared was still vSGA. Given this poor performance, I wondered if vSGA somehow falls back to a kind of software rasterization.
The issues it raises are testing for the CAD end users and have made me consider the architecture of the GPU sharing technologies. Tim Mackey wrote a blog explaining the different technologies and driver models in the last few weeks, which I believe is essential reading for anyone to evaluate the purchase of these technologies.
Citrix GPU own drivers lever technology "GPU providers, and the NVIDIA organization is dedicated to the integration of latest technology, the OpenGL API, etc. as such, the application support is provided by NVIDIA without synthetic virtualization drivers.
anyone working in CAD knows the nightmare cross-cutting issues, the sheer overhead of software certification and documents associated with compliance of the export data to allow a question to be examined by another organization (and unhappiness when a team is in the United States and the other is not!). The cost and time of such issue and the vast resources consumed regression testing and re-integrate a fix component in these highly regulated industries is daunting at best. The simplicity of the architectural model vGPU remove a layer of certification looks so elegant in this context.
Why Redway3d significant?
Redway3d is probably an unfamiliar name to most end users that applications such as SolidWorks Dassault and Siemens PLM NX. But Redway3d are a supplier of important components in CAD / CAE / AEC. Most CAD products use the same components for a large part of the product infrastructure and add value in the GUI or technologies such as simulation solvers.
Redway3d is a rendering component and integrated visualization in many CAD applications and platforms. Many benchmarking programs are actually quite old and some are not very realistic for CAD users. Redway3d uses the CPU and GPU so that many CAD users. SDK Redway is a key element in a number of high CAD programs including Airbus and Topsolid Missler. They fit against geometric kernels leading Parasolid such as Siemens PLM (behind NX, Solidworks, Ansys Workbench, SolidEdge) and have close ties with Dassault (CATIA) and their clients.
Turbine Demo Redway has been around for several years and is widely used, proven to work on physical systems. In fact, it has been used a few weeks ago by Dane Young to demonstrate XenDesktop 7.1 on architecture HP Moonshot. He is actively regression tested at NVIDIA and one of the applications they frequently emit performance improvements. Making it along with the other evidence suggests that the problem is in the virtualization stack.
As such, a problem with the integration Redway3d in a virtualization stack is very worrying because it could mean the end users are limited in their choice of software and also face the potential uncertainty delays and costs solve problems.
If I am looking to buy a solution, I would be seriously involved Quizzing sales teams and to be understood that reference in my assessment, not to compare the frame rate, but to understand the passive driving assistance In progress.
So what's wrong in the trial of Gunnar vSGA?
I contacted Gunnar and asked if my theory of a kind of software rasterization decline was plausible and not thinking. Apparently he had monitored the use of the GPU to eliminate this possibility itself and the GPU was sometimes used, almost at full capacity. I'm still confused as to why the pilot failed under vSGA XenDesktop.
I look in the OpenGL support for the demo, and was happy to see it covered the CAD functionality as Hidden Line key as similar and game benchmarks tend to overlook, but I have not find enough detail to understand if vSGA test performance would affect other applications based on OpenGL.
one of the reasons for writing this blog is that I am hoping that someone can have a better knowledge of the stack of VMWare and its interaction with Redway3d applications or the use of OpenGL Redway and enlighten me, then please make a comment that I'm still bamboozled!
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