I wrote the Initialize counter :) Please tell me if the name seems confusing
So,Initialize = the time spent by job waiting for resources. In a shared pool
the job you launch may not get all the machines needed to start the job. So for
instance you want to run a job with 200 workers, giraph does not start until
all the workers have are allocated & register with the master.
Setup = once you have all the machines allocated, how much time it takes before
starting to read input
Shutdown = once you have written your output howmuch time it takes to stop
verify that everything is done & shutdown resources & notify user - for
instance wait for all network connections to close, all threads to join, etc.
Total = sum of input time + sum of time in all superstepsi.e., actual time
taken to run by your application after it got all the resources (does not
include time waiting to get resources which is initialize or shutdown time)
Date: Fri, 18 Apr 2014 13:28:47 +0100
Subject: Re: input superstep of giraph.
From: ghufran1ma...@gmail.com
To: user@giraph.apache.org
Hi,
Could you also explain what the following timers correspond to as well please:
Giraph Timers Initialize (ms)=775
Setup (ms)=105
Shutdown (ms)=12537
Total (ms)=27075
Thanks,
Ghufran
On Thu, Apr 17, 2014 at 9:10 PM, Pavan Kumar A <pava...@outlook.com> wrote:
Input consists of > reading the input (vertices and/or edges as provided) into
memory on individual workers> assigning vertices to partitions and partitions
to workers
> moving all partitions (i.e., vertices & their out-edges) to a worker (which
> owns the partition)> doing some bookkeeping of internal data-structures to be
> used during computation
Date: Thu, 17 Apr 2014 10:06:03 -0500
Subject: input superstep of giraph.
From: suijian.z...@gmail.com
To: user@giraph.apache.org
Hi,
From the screen output of a successful giraph program run, what does the
following line mean?
Input superstep (ms)=22884
Does it mean the time used to load the input graph into memory? Thanks.
Best Regards,
Suijian
