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Posted to dev@systemml.apache.org by Himanshu Mohan <Hi...@aexp.com.INVALID> on 2017/09/09 01:15:12 UTC

RE: [jira] [Updated] (SYSTEMML-1591) Improve efficiency sparse-unsafe cellwise operations

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Thanks 
Himanshu


-----Original Message-----
From: Glenn Weidner (JIRA) [mailto:jira@apache.org] 
Sent: Saturday, September 09, 2017 6:43 AM
To: issues@systemml.apache.org
Subject: [jira] [Updated] (SYSTEMML-1591) Improve efficiency sparse-unsafe cellwise operations


     [ https://issues.apache.org/jira/browse/SYSTEMML-1591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Glenn Weidner updated SYSTEMML-1591:
------------------------------------
    Fix Version/s:     (was: SystemML 1.0)
                   SystemML 0.15

> Improve efficiency sparse-unsafe cellwise operations
> ----------------------------------------------------
>
>                 Key: SYSTEMML-1591
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1591
>             Project: SystemML
>          Issue Type: Sub-task
>          Components: Compiler, Runtime
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 0.15
>
>
> For sparse-unsafe cellwise operations, we currently iterate over all cells and use binary search to access the individual values. This is unnecessarily inefficient to should be reworked in favor of a sequential scan with gap handling, which would also allow us to consolidate the different code paths for sparse-safe and -unsafe operations.



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RE: [jira] [Updated] (SYSTEMML-1591) Improve efficiency sparse-unsafe cellwise operations

Posted by Glenn Weidner <gw...@us.ibm.com>.
To remove your address from the issues list, send a message to:
   <is...@systemml.apache.org>

Regards,
Glenn



From:	Himanshu Mohan <Hi...@aexp.com.INVALID>
To:	"dev@systemml.apache.org" <de...@systemml.apache.org>
Date:	09/08/2017 09:53 PM
Subject:	RE: [jira] [Updated] (SYSTEMML-1591) Improve efficiency
            sparse-unsafe cellwise operations



Hi,

I will like to unsubscribe to this email . Pleae let me know the process







Thanks

Himanshu





-----Original Message-----

From: Glenn Weidner (JIRA) [mailto:jira@apache.org]

Sent: Saturday, September 09, 2017 6:43 AM

To: issues@systemml.apache.org

Subject: [jira] [Updated] (SYSTEMML-1591) Improve efficiency sparse-unsafe
cellwise operations





     [
https://urldefense.proofpoint.com/v2/url?u=https-3A__issues.apache.org_jira_browse_SYSTEMML-2D1591-3Fpage-3Dcom.atlassian.jira.plugin.system.issuetabpanels-3Aall-2Dtabpanel&d=DwIGaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=we2L9Q2NOeniL5PbfdrO3CmQPNy_vnhoDpPDviJpnrU&m=RktQi2xPy3D4v_pydzFm0hBIG_kvTLq1iaesP8jrz_w&s=Yhuz1kJmjUQ1Sl6gPiKJ9jarqyofSJVGJ0MMfc3vAUA&e=
  ]



Glenn Weidner updated SYSTEMML-1591:

------------------------------------

    Fix Version/s:     (was: SystemML 1.0)

                   SystemML 0.15



> Improve efficiency sparse-unsafe cellwise operations

> ----------------------------------------------------

>

>                 Key: SYSTEMML-1591

>                 URL:
https://urldefense.proofpoint.com/v2/url?u=https-3A__issues.apache.org_jira_browse_SYSTEMML-2D1591&d=DwIGaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=we2L9Q2NOeniL5PbfdrO3CmQPNy_vnhoDpPDviJpnrU&m=RktQi2xPy3D4v_pydzFm0hBIG_kvTLq1iaesP8jrz_w&s=GkK6Qsfz4YtXzhzfYRYMBQh6SSHBXE6Ps1_qJLAPP1Y&e=


>             Project: SystemML

>          Issue Type: Sub-task

>          Components: Compiler, Runtime

>            Reporter: Matthias Boehm

>            Assignee: Matthias Boehm

>             Fix For: SystemML 0.15

>

>

> For sparse-unsafe cellwise operations, we currently iterate over all
cells and use binary search to access the individual values. This is
unnecessarily inefficient to should be reworked in favor of a sequential
scan with gap handling, which would also allow us to consolidate the
different code paths for sparse-safe and -unsafe operations.







--

This message was sent by Atlassian JIRA

(v6.4.14#64029)



American Express made the following annotations

******************************************************************************


"This message and any attachments are solely for the intended recipient and
may contain confidential or privileged information. If you are not the
intended recipient, any disclosure, copying, use, or distribution of the
information included in this message and any attachments is prohibited. If
you have received this communication in error, please notify us by reply
e-mail and immediately and permanently delete this message and any
attachments. Thank you."



American Express a ajouté le commentaire suivant le Ce courrier et toute
pièce jointe qu'il contient sont réservés au seul destinataire indiqué et
peuvent renfermer des

renseignements confidentiels et privilégiés. Si vous n'êtes pas le
destinataire prévu, toute divulgation, duplication, utilisation ou
distribution du courrier ou de toute pièce jointe est interdite. Si vous
avez reçu cette communication par erreur, veuillez nous en aviser par
courrier et détruire immédiatement le courrier et les pièces jointes.
Merci.



******************************************************************************