Turn off HDF5 md and rd caching on core/mem vfds

[aowen87]

HDF5 library maintains caching layer above the VFDs. If the VFD is a memory based file, caching is a useless waste of memory. Silo lib should be sure to turn that off under those conditions. I think we already do some of this on the block-based VFD. But, this issue bares further scrutiny.

-----------------------REDMINE MIGRATION----------------------- This ticket was migrated from Redmine. As such, not all information was able to be captured in the transition. Below is a complete record of the original redmine ticket.

Ticket number: 939 Status: New Project: VisIt Tracker: Feature Priority: Normal Subject: Turn off HDF5 md and rd caching on core/mem vfds Assigned to: - Category: - Target version: - Author: Mark Miller Start: 01/18/2012 Due date: % Done: 0% Estimated time: Created: 01/18/2012 02:29 pm Updated: Likelihood: Severity: Found in version: Impact: 3 - Medium Expected Use: 3 - Occasional OS: All Support Group: Any Description: HDF5 library maintains caching layer above the VFDs. If the VFD is a memory based file, caching is a useless waste of memory. Silo lib should be sure to turn that off under those conditions. I think we already do some of this on the block-based VFD. But, this issue bares further scrutiny.

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