This post is the continuation of the previous one on: CPU starvation I needed to rewrite a part of the code and it was a good opportunity to change the algorithm of the variance calculation. I was using the naive … Continue reading
A few weeks ago, I discovered that one of my programs has some cpu starvation issues. A cpu is starved when is waiting for the data. The most common cases are due high load on the disk but it can … Continue reading
The automatic build is broken since a few days, a yum update broke a few things. It should be fixed by now.
New rpms of tonto-chem for centos 6, fedora 13-15. Centos 5 is missing, I have some troubles. There are builds for the serial version and mpi versions using openmpi, mpich2 or mvapich2. All versions can be installed simulatenously and a … Continue reading
I updated Fox and drawxtl today for fedora 13, 14, 15 and centos 5, 6. For platon, use the rpm from debroglie nightly. Update: Vincent gave me the solution for centos 5.
On centos 5 yum is complaining with the error: debroglie/primary_db | 64 kB 00:00 http://centos.debroglie.net/RPMS/5/repodata/primary.sqlite.bz2: [Errno -3] Error performing checksum The server is now on centos 6 and createrepo is using a hash that centos 5 does not understand by … Continue reading
I will be at the IUCR meeting in Madrid if anybody want to chat with me about computing/packaging/whatever, they are welcome 🙂 I’ll be presenting a poster on Linear transformations of variance/covariance matrices. abstract nº 1593 in MS62 Crystallographic Software: … Continue reading
I am hijacking my own blog… I need to add spamassassin now and therefore I need some junk, here is for you little bad bots: firstname.lastname@example.org
New package! Platon has a very fast releases which make things difficult to keep the package up to date. There is now an automatic build (build at 3am GMT+1) of platon for fedora 13,14 and 15 and for centos 5 … Continue reading
A while ago, I discussed a bit about code optimisation using valgrind: Spot bottlenecks. At the end I obtained something like 1sec for about 4000 reflections. Meaning about 250-500us/refl. In the meantime, I needed a much faster version. I am … Continue reading