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TAU integration with Score-P

TAU integration with Score-P. Allen D. Malony, Sameer Shende {malony,sameer}@ cs.uoregon.edu LMAC meeting, April 2012, T.U. Munich, Garching , Germany Virtual Institute High Productivity Supercomputing (VI-HPS) Performance Refactoring: Instrumentation, Measureme nt, Analysis (PRIMA).

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TAU integration with Score-P

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  1. TAU integration with Score-P Allen D. Malony, Sameer Shende {malony,sameer}@cs.uoregon.edu LMAC meeting, April 2012, T.U. Munich, Garching, Germany Virtual Institute High Productivity Supercomputing (VI-HPS) Performance Refactoring: Instrumentation, Measurement, Analysis (PRIMA)

  2. Overview • Introduction • TAU Overview • Status of TAU integration with Score-P • Future work

  3. TAU Performance System® • Parallel performance framework and toolkit • Support all HPC platforms, compilers,runtime systems • Provide portable instrumentation, measurement, analysis http://tau.uoregon.edu

  4. TAU Performance System® (2) • Instrumentation • Fortran, C++, C, UPC, Java, Python, Chapel • Automatic instrumentation • Measurement and analysis support • MPI, OpenSHMEM, ARMCI, PGAS • pthreads, OpenMP, other thread models • GPU, CUDA, OpenCL, OpenACC • Parallel profiling and tracing • Use of Score-P for native OTF2 generation capability • Analysis • Parallel profile analysis (ParaProf), data mining (PerfExplorer) • Performance database technology (PerfDMF, TAUdb) • 3D profile browser

  5. TAU Performance System® (3) • Automatic instrumentation • Source level • Program Database Toolkit (PDT) • ROSE to PDB generator • routines, loops, memory, I/O, UPC constructs, … • Compiler based instrumentation • GNU, IBM, NAG, Intel, PGI, Pathscale, Cray • Binary rewriting • DyinstAPI, MAQAO, PEBIL (in progress) • Automatic wrapper library generator • tau_gen_wrapper • MPI, I/O, memory, …

  6. TAU Performance System® (4) • Other • Callstack debugging • I/O and heap memory usage • Leak detection • Interfaces • PAPI for hardware counters • Scalasca and Vampir for OTF2 tracing and visualization • Dyninst and MAQAO for binary instrumentaion • Integration with Score-P going forward • BSD style license • http://tau.uoregon.edu

  7. Score-P with TAU Integration • Score-P softwarearchitecture Vampir Scalasca TAU Periscope Score-P measurement infrastructure Event traces(OTF2 format) Call-path profiles (CUBE4 and TAU formats) Online interface Hardware counters Memory management Other … • Target application (MPI, OpenMP, hybrid, serial) Compiler TAUinstrumentor OPARI 2 User • Instrumentation

  8. Score-P Software Components • Separate software components: Vampir Scalasca TAU Periscope Score-P measurement infrastructure Event traces(OTF2 format) Call-path profiles (CUBE4 and TAU formats) Online interface Hardware counters Memory management Other … • Target application (MPI, OpenMP, hybrid, serial) Compiler TAUinstrumentor OPARI 2 User • Instrumentation

  9. Example: Score-P with TAU (LU NPB) TAU v2.21.2, PDT v3.17, with Score-P v1.0.1

  10. Status and Future Work (PRIMA, LMAC) • Existingfunctionality • Regionsmapped to intervaltimers in TAU • Cube 4 profilereaderintegrated in ParaProf [Pavel] • TAU instrumentationcomponentscanuseScore-P • Opari2 integrated in TAU • ParaProf, PerfDMF, and PerfExplorerinteroperabilitywith CUBE • LiveDVDupdatedfrom 32 bit FC11 to 32 bit and 64 bit FC16 • Tutorials and outreachactivities • ToDo • Integrate a genericthreadlibrarycallbackmechanism • Tau2otf2 traceconverterforlegacy TAU traces • Event-basedsampling/ hybrid profilingintegration(Zoltan/Chee Wai Lee) • PRIMA: VI-HPS visitors to U. Oregon • 2010-2011: Daniel Lorenz, Christian Roessel, Pavel Savianko • Summer 2012: Daniel Lorenz, Christian Roessel

  11. Projects • DOE • PRIMA • Performance refactoring for core infrastructure • TAU integration with Score-P • Vancouver • Focus on heterogeneous system • Development of GPU performance measurement • SUPER • Multi-institutional • Performance, energy, resilience • NSF • Glass Box (pending, with University of Houston, Georgia Tech) • Interfaces within HPC software stack

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