Hi,
I am working on a Graph Partitioning algorithms, and have chosen Giraph as
a Graph processing system to run Graph problems, and very new to both.I
would like to provide external partitioning information(in the form of txt
file) to Giraph. For this I have created a custom partition (something
Hi there
In my project I have to implement a routing system with good performance;
at the beginning this system should be able in giving routes information
only for one italian region (Lombardia) but it could be used for the whole
Italy (or world)
Let's stop to the Lombardia for now
performance;
at the beginning this system should be able in giving routes information
only for one italian region (Lombardia) but it could be used for the whole
Italy (or world)
Let's stop to the Lombardia for now. By reading OSM files I can create my
own graph in the best format i can use
this system should be able in giving routes information
only for one italian region (Lombardia) but it could be used for the whole
Italy (or world)
Let's stop to the Lombardia for now. By reading OSM files I can create my
own graph in the best format i can use it; then I need to use Dijkstra
project I have to implement a routing system with good performance;
at the beginning this system should be able in giving routes information
only for one italian region (Lombardia) but it could be used for the whole
Italy (or world)
Let's stop to the Lombardia for now. By reading OSM files I can
this system should be able in giving routes information
only for one italian region (Lombardia) but it could be used for the whole
Italy (or world)
Let's stop to the Lombardia for now. By reading OSM files I can create my
own graph in the best format i can use it; then I need to use Dijkstra
information
only for one italian region (Lombardia) but it could be used for the whole
Italy (or world)
Let's stop to the Lombardia for now. By reading OSM files I can create my
own graph in the best format i can use it; then I need to use Dijkstra (or
any other algorithm) in order to propose
, Angelo Immediata angelo...@gmail.com
wrote:
Hi there
In my project I have to implement a routing system with good
performance;
at the beginning this system should be able in giving routes information
only for one italian region (Lombardia) but it could be used for the
whole
Italy (or world
with good
performance;
at the beginning this system should be able in giving routes
information
only for one italian region (Lombardia) but it could be used for the
whole
Italy (or world)
Let's stop to the Lombardia for now. By reading OSM files I can create
my
own graph in the best format i
Ok, so I added the partitions flag, going with
hadoop jar target/giraph-0.1-jar-with-dependencies.jar
org.apache.giraph.examples.SimpleShortestPathsVertex
-Dgiraph.SplitMasterWorker=false -Dgiraph.numComputeThreads=12
-Dhash.userPartitionCount=12 input output 12 1
but still I got no overall
To: user@giraph.apache.org
Subject: Re: What a worker really is and other interesting runtime information
Ok, so I added the partitions flag, going with
hadoop jar target/giraph-0.1-jar-with-dependencies.jar
org.apache.giraph.examples.SimpleShortestPathsVertex
-Dgiraph.SplitMasterWorker=false
@giraph.apache.org
*Subject:* Re: What a worker really is and other interesting runtime
information
** **
Ok, so I added the partitions flag, going with
hadoop jar target/giraph-0.1-jar-with-dependencies.jar
org.apache.giraph.examples.SimpleShortestPathsVertex
-Dgiraph.SplitMasterWorker
Daglis [mailto:alexandros.dag...@epfl.ch]
Sent: Thursday, November 29, 2012 12:30 PM
To: user@giraph.apache.org
Subject: Re: What a worker really is and other interesting runtime information
Hello Bence,
So, you have 96 cores at your disposal. My guess would be that 3 workers are
not enough to use
Oh, forgot one thing. You need to set the number of partitions to use
single each thread works on a single partition at a time.
Try -Dhash.userPartitionCount=number of threads
On 11/28/12 5:29 AM, Alexandros Daglis wrote:
Dear Avery,
I followed your advice, but the application seems to be
Hi Alexandros,
The extra task is for the master process (a coordination task). In your
case, since you are using a single machine, you can use a single task.
-Dgiraph.SplitMasterWorker=false
and you can try multithreading instead of multiple workers.
-Dgiraph.numComputeThreads=12
The
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