The growth in the number of generally available, distributed, heterogeneous computing
systems places increasing importance on the development of user-friendly tools that enable …

Fail-stop failures in distributed environments are often tolerated by checkpointing or
message logging. In this paper, we show that fail-stop process failures in ScaLAPACK matrix …

We propose a procedure for synthesizing piecewise linear optimal controllers for hybrid
systems and investigate conditions for closed-loop stability. Hybrid systems are modeled in …

As the number of processors in today's high performance computers continues to grow, the
mean-time-to-failure of these computers are becoming significantly shorter than the …

Petascale parallel computers with more than a million processing cores are expected to be
available in a couple of years. Although MPI is the dominant programming interface today for …

Today's scientific workflows use distributed heterogeneous resources through diverse grid
and cloud interfaces that are often hard to program. In addition, especially for time-sensitive …

In this paper, we describe the design and implementation of two mechanisms for fault-
tolerance and recovery for complex scientific workflows on computational grids. We present …

As the size of today's high performance computers increases from hundreds, to thousands,
and even tens of thousands of processors, node failures in these computers are becoming …

As high-performance computing moves to the petascale and beyond, a number of
algorithmic and software challenges need to be addressed. This paper reviews the main …

This paper presents an adaptive technique to animate deformable bodies in real-time. Our
method relies on mixed finite-volume/finite-element method applied to an arbitrary non …