Clustercorp Rocks(R)+HYBRID dual boot solution

Today Clustercorp introduced their new hybrid solution, ROCKS(R)+HYBRID, for supporting Windows HPC Server and Linux on the same hardware. They’ve pulled together a Rocks-based deployment solution that is consistent with both Windows HPC Server 2008 and Rocks philosophies. I think it will be welcomed by our customer base and that it greatly eases the burden…

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Headnode reports itself as Unreachable

I find a lot of people are starting to build demonstration clusters on a small scale with some sort of minimal ‘enterprise’ network. In my case the enterprise network is my home router and the private network is a little 5 port GigE switch. To make it a bit more realistic and to be able…


Getting Host(A) records added to Windows HPC Server 2008 Private network DNS

A common scenario is to have the Windows HPC Server 2008 Private Network DNS on the head node of the cluster. Because the HPC Pack normally manages name resolution for the private network via Hosts files it propagates to all nodes, we do not normally set the private network interfaces to register with the DNS…

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Warning: Not all InfiniBand HCAs have a PSID

If you read the documents posted by Mellanox about their new 2..0.5 build 4453 InfiniBand drivers you may have noticed the advice to update your firmware. If so, you will need to discover your PSID. This should be pretty straight forward, just install the drivers and then using the HPC Management console Run a Command…


New Mellanox WinOF InfiniBand WHQLed Drivers: Driver Installation

Mellanox has released a new version of its WHQLed WinOF drivers. V2.0.5 build 4453 See: http://www.mellanox.com/content/pages.php?pg=products_dyn&product_family=32&menu_section=34 Click the download tab in the middle of the page and select the MLNX WinOF MSI v2.0.5 for x64 Platforms shortcut  to begin the .msi download from http://www.mellanox.com/downloads/WinOF/MLNX_WinOF_2_0_5_wlh_x64_fre_2_0_5_4453.msi . I give the first link because it references other documents…

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HPC Server 2008 MPI Diagnostic Fails on Eager Message No Business Card Error

An HPC Server 2008 user reported that his cluster was up and running and that all nodes could ping each other over all networks but the built-in MPI diagnostic was failing with an uninformative message “Failed To Run”. He had a topology number three with the head node connected to the Enterprise network and all…


How to tell if a .exe file is a 32-bit or 64-bit application using dumpbin

Goodfolk, One of my customers wanted to know if they had really built a 64-bit application for their cluster. After all, we run WIndows HPC Server on a 64-bit server OS, so why not take full advantage of it? I had a few minutes before I had to get back to them so I thought…

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HPC Visual Studio Command Line Compilation from Powershell

I admit to an almost perverse fondness for command line environments. So I decided to jump onto PowerShell as my default command line environment because its way more cool than the cmd shell and even a nerd with a penchant for undead languages sometimes worries about being cool to some tiny degree. Only know about bash, csh,…


Chronicles of a Cluster Troubleshooter

Applications Performance Improved with Snoop Filter Off on Intel 5000x Chipset Chronicles of a Cluster Troubleshooter Volume One #1 Date: October 5, 2007 Issue: Performance of application, Eclipse, on Windows Compute Cluster Server V1 is below that of the same application run on the same hardware on Linux. Hardware Platform: HP Proliant DL140 cluster with…