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Publication date: 1 de June, 2021

I/O Paralelo

Before the nineties, I/O performance growth has not kept up to pair with progress in other subsystems, e.g. CPU and network I/O. As a consequence, bottlenecks observed in the execution of demanding applications have progressively shifted from these areas to the I/O subsystem, and performance gains were lower and lower.

The solutions adopted in the last decade for fast I/O in supercomputer and MPP architectures improved substantially the performance of those applications, but are inadequate for modern architectures based on low cost COTS (Common off-the-shelf) components.

This presentation will address “state of the art” components that enable us to build high performance computacional architectures (including SMP, cc-NUMA, MPP and clusters) but main focus will be on I/O components: disks, disk arrays and interconnection topologies between servers and storage.

We will conclude our presentation by focusing on the issues that have to be tackled by File Systems running on either shared nothing or shared disk cluster architectures.

Presenter


Date 11/06/2003
State Concluded