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Date: Wed, 26 May 2010 14:41:39 -0400
Message-ID: <AANLkTinXQQoS-edoy1V_Rg8fb9KSisKPOeMM5UbiRpRa@mail.gmail.com>
Subject: Re: Improve the performance of multiplier as high as possible in the
	version 2.2.2 of UIMAAS
From: Eddie Epstein <eaepstein@gmail.com>
To: user@uima.apache.org
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First of all, version 2.2.2 does not reliably support scaled out remote
CasMultipliers, but the current version 2.3.0 does. Please move to
the new version.

>  I dont't konw the relationship between CASpool and casMultiplier poolSiz=
e.
> The tutorial says,the actual CAS pool size is the value in the deployment
> descriptor, plus the value in custom CM code, minus 1.That assumes there =
is 1
> instance.What about 5 instances?
I don't believe any adjustment is made for the number of CM instances.
As of now the user will have to calculate the right size to set the CasPool=
.

Also note that an aggregate with a remote CasMultiplier delegate requires
configuration of a "ShadowCasPool". The shadow CasPool size is the number
that will be distributed by the aggregate.

If you would share the block diagram of your intended configuration, either
on this list or privately, we would be in a better position to help.

Eddie

On Tue, May 25, 2010 at 11:25 PM, feixiang <feixiangcq@gmail.com> wrote:
>
> =C2=A0I test my program and find that the multiplier is the bottleneck.I =
find
> the multiplier's idle time is always 0.So I want to improve the performan=
ce
> =C2=A0by speeding up the multiplier. The tutorial says,Only one remote ca=
n be a
> remote CAS Multiplier,In version 2.2.2, and that remote can only have one
> instance.I still deploy the multiplier 5 instances in 1 node.The performa=
nce
> improves, 2 times faster than 1 instance,not 5 times.What does the result=
 tell
> to me?
> =C2=A0I dont't konw the relationship between CASpool and casMultiplier po=
olSize.
> The tutorial says,the actual CAS pool size is the value in the deployment
> descriptor, plus the value in custom CM code, minus 1.That assumes there =
is 1
> instance.What about 5 instances?
> =C2=A0So in the version 2.2.2,how can I improve the performance of multip=
lier as
> =C2=A0high as possible?Eddie Epstein said,"getEmptyCas() will block until=
 a free CAS
> =C2=A0is available in the CasPool."
> =C2=A0So how can I avoid the "getEmptyCas()" is blocked?If I deloly 5 ins=
tances of
> multiplier,How do I assign the size of CASpool and casMultiplier poolSize=
?
> =C2=A0I=E3=80=80am very grateful if you help me.
>
>
>