Large Scale Systems.- A Scalable MPI_Comm_split Algorithm for Exascale Computing.- Enabling Concurrent Multithreaded MPI Communication on Multicore Petascale Systems.- Toward Performance Models of MPI Implementations for Understanding Application Scaling Issues.- PMI: A Scalable Parallel Process-Management Interface for Extreme-Scale Systems.- Run-Time Analysis and Instrumentation for Communication Overlap Potential.- Efficient MPI Support for Advanced Hybrid Programming Models.- Parallel Filesystems and I/O.- An HDF5 MPI Virtual File Driver for Parallel In-situ Post-processing.- Automated Tracing of I/O Stack.- MPI Datatype Marshalling: A Case Study in Datatype Equivalence.- Collective Operations.- Design of Kernel-Level Asynchronous Collective Communication.- Network Offloaded Hierarchical Collectives Using ConnectX-2's CORE-Direct Capabilities.- An In-Place Algorithm for Irregular All-to-All Communication with Limited Memory.- Applications.- Massively Parallel Finite Element Programming.- Parallel Zero-Copy Algorithms for Fast Fourier Transform and Conjugate Gradient Using MPI Datatypes.- Parallel Chaining Algorithms.- MPI Internals (I).- Precise Dynamic Analysis for Slack Elasticity: Adding Buffering without Adding Bugs.- Implementing MPI on Windows: Comparison with Common Approaches on Unix.- Compact and Efficient Implementation of the MPI Group Operations.- Characteristics of the Unexpected Message Queue of MPI Applications.- Fault Tolerance.- Dodging the Cost of Unavoidable Memory Copies in Message Logging Protocols.- Communication Target Selection for Replicated MPI Processes.- Transparent Redundant Computing with MPI.- Checkpoint/Restart-Enabled Parallel Debugging.- Best Paper Awards.- Load Balancing for Regular Meshes on SMPs with MPI.- Adaptive MPI Multirail Tuning for Non-uniform Input/Output Access.- Using Triggered Operations to Offload Collective Communication Operations.- MPI Internals (II).- Second-Order Algorithmic Differentiation by Source Transformation of MPI Code.- Locality and Topology Aware Intra-node Communication among Multicore CPUs.- Transparent Neutral Element Elimination in MPI Reduction Operations.- Poster Abstracts.- Use Case Evaluation of the Proposed MPIT Configuration and Performance Interface.- Two Algorithms of Irregular Scatter/Gather Operations for Heterogeneous Platforms.- Measuring Execution Times of Collective Communications in an Empirical Optimization Framework.- Dynamic Verification of Hybrid Programs.- Challenges and Issues of Supporting Task Parallelism in MPI.