Friday, February 17, 2012
CUDA: Accessing pinned/pagelocked memory from different threads
Some time ago I asked the question here:
http://forums.nvidia.com/index.php?showtopic=201193
on how to access pinned or pagelocked memory from two threads in the same program.
The key is to allocate with the portable attribute.
Look at:
Nvidia Doxygen 4.0 cudaHostAlloc
for details.
Even more elegant is however, to register the memory only if you need it:
See details about cudaHostRegister cudaHostRegister cudaHostUnregister at:
Nvidia Doxygen 4.0 cudaHostRegister
http://forums.nvidia.com/index.php?showtopic=201193
on how to access pinned or pagelocked memory from two threads in the same program.
The key is to allocate with the portable attribute.
Look at:
Nvidia Doxygen 4.0 cudaHostAlloc
for details.
Even more elegant is however, to register the memory only if you need it:
See details about cudaHostRegister cudaHostRegister cudaHostUnregister at:
Nvidia Doxygen 4.0 cudaHostRegister
Tuesday, February 14, 2012
Tools: EPS and PDF printer Windows
For directly printing EPS files out of any Windows application.
http://www.bullzip.com/
http://www.bullzip.com/
Monday, February 13, 2012
Tools: Office 2010 Print to File
It took me some time to actually find this well known Option. If you are in Excel or any other Office program you see this option well down below the combo-box where you chose the Printer.
However, in Outlook 2010 it is on the initial Print Page.
However, in Outlook 2010 it is on the initial Print Page.
Friday, February 10, 2012
Monday, February 6, 2012
GIT: DIFF working tree against some revision or branch
git diff fw7e7f8wef8wef yourfile.c
Gives the changes between current working dir and revision or branch: fw7e7f8wef8wef
Gives the changes between current working dir and revision or branch: fw7e7f8wef8wef
Wednesday, February 1, 2012
Fully reviewed journal publications
- J. Habich, C. Feichtinger, H. Köstler, G. Hager, G. Wellein: Performance engineering for the Lattice Boltzmann method on GPGPUs: Architectural requirements and performance results, Computers & Fluids, Available online 27 February 2012, ISSN 0045-7930, 10.1016/j.compfluid.2012.02.013.
DOI LINK
- C. Feichtinger, J. Habich, H. Köstler , G. Hager , U. Rüde, G. Wellein: A flexible Patch-based lattice Boltzmann parallelization approach for heterogeneous GPU–CPU clusters, Parallel Computing, Volume 37, Issue 9, September 2011, Pages 536-549, ISSN 0167-8191, 10.1016/j.parco.2011.03.005.
DOI LINK - J. Habich, T. Zeiser, G. Hager, G. Wellein, Performance analysis and optimization strategies for a D3Q19 Lattice Boltzmann Kernel on nVIDIA GPUs using CUDA, In Special issue of "Advances in Engineering Software and Computers & Structures".
DOI LINK - J. Habich, T. Zeiser, G. Hager, and G. Wellein: Speeding up a Lattice Boltzmann Kernel on nVIDIA GPUs. In Proceedings of PARENG09-S01, the First International Conference on Parallel, Distributed and Grid Computing for Engineering, Pecs, Hungary, April 2009.
Tuesday, January 31, 2012
GIT: Tag particular commit
Simply use git tag as usual but provide a valid commit hash:
git tag -a v1.0 cc622186a7322713f0ee4df8d58a1adcfe2ffef6 -m"tag a particular commit"
git tag -a v1.0 cc622186a7322713f0ee4df8d58a1adcfe2ffef6 -m"tag a particular commit"
Subscribe to:
Posts (Atom)