Choudhury, A. N. M. ImrozPotter, Kristin C.Parker, Steven G.A. Vilanova, A. Telea, G. Scheuermann, and T. Moeller2014-02-212014-02-2120081467-8659https://doi.org/10.1111/j.1467-8659.2008.01212.xWe present the Memory Trace Visualizer (MTV), a tool that provides interactive visualization and analysis of the sequence of memory operations performed by a program as it runs. As improvements in processor performance continue to outpace improvements in memory performance, tools to understand memory access patterns are in- creasingly important for optimizing data intensive programs such as those found in scientific computing. Using visual representations of abstract data structures, a simulated cache, and animating memory operations, MTV can expose memory performance bottlenecks and guide programmers toward memory system optimization opportu- nities. Visualization of detailed memory operations provides a powerful and intuitive way to expose patterns and discover bottlenecks, and is an important addition to existing statistical performance measurements.