Re: Basic questions about Giraph internals

2014-02-07 Thread Alexander Frolov
On Fri, Feb 7, 2014 at 2:30 PM, Claudio Martella claudio.marte...@gmail.com wrote: On Fri, Feb 7, 2014 at 9:44 AM, Alexander Frolov alexndr.fro...@gmail.com wrote: Thank you, I will try to do this. As I understood I should set number of threads manually through Giraph API. BTW, what

Re: Basic questions about Giraph internals

2014-02-07 Thread Claudio Martella
Yes, Giraph hijacks mapper tasks, and then does everything else on its own. On Fri, Feb 7, 2014 at 12:39 PM, Alexander Frolov alexndr.fro...@gmail.comwrote: On Fri, Feb 7, 2014 at 2:30 PM, Claudio Martella claudio.marte...@gmail.com wrote: On Fri, Feb 7, 2014 at 9:44 AM, Alexander

Re: Basic questions about Giraph internals

2014-02-07 Thread Sebastian Schelter
I tried the setup with one multithreaded worker per machine for the first time a few minutes ago on a cluster of 25 machines, and my job (closeness centrality estimation on a billion edge graph) ran twice as fast! On 02/07/2014 12:21 PM, Claudio Martella wrote: Yes, I think this is the