charm AT lists.cs.illinois.edu

Subject: Charm++ parallel programming system

List archive

Re: [charm] Dynamically obtaining the number of array elements from its proxy

From: Phil Miller <mille121 AT illinois.edu>
To: "Mikida, Eric P" <mikida2 AT illinois.edu>
Cc: Alexander Frolov <alexndr.frolov AT gmail.com>, "charm AT cs.illinois.edu" <charm AT cs.illinois.edu>
Subject: Re: [charm] Dynamically obtaining the number of array elements from its proxy
Date: Wed, 21 Dec 2016 17:04:36 -0600

On Wed, Dec 21, 2016 at 4:46 PM, Mikida, Eric P <mikida2 AT illinois.edu> wrote:

Unfortunately, the proxy does not carry any size information about its associated chare array.

To elaborate on this, from the system's perspective, the number of elements in a chare array is a distributed, dynamic property. Sequential code running on any one processor literally cannot provide a correct value.

For arrays that are static because the application knows so, the application can just as easily preserve and communicate that information by its own means.

[charm] Dynamically obtaining the number of array elements from its proxy, Alexander Frolov, 12/20/2016
- [charm] Fwd: Dynamically obtaining the number of array elements from its proxy, Alexander Frolov, 12/21/2016
  - Re: [charm] Dynamically obtaining the number of array elements from its proxy, Mikida, Eric P, 12/21/2016
    - Re: [charm] Dynamically obtaining the number of array elements from its proxy, Phil Miller, 12/21/2016
      - Re: [charm] Dynamically obtaining the number of array elements from its proxy, Alexander Frolov, 12/21/2016