1. TAU integration with Score-P
Allen D. Malony, Sameer Shende
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
Felix‘ part, slides including 2 slides about the four tools Periscope, TAU, Scalasca, Vampir

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
Felix‘ part, slides including 2 slides about the four tools Periscope, TAU, Scalasca, Vampir

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, …
Felix‘ part, slides including 2 slides about the four tools Periscope, TAU, Scalasca, Vampir

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
Felix‘ part, slides including 2 slides about the four tools Periscope, TAU, Scalasca, Vampir

7. Score-P with TAU Integration
Score-P software architecture
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
TAU instrumentor
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
TAU instrumentor
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)
Existing functionality
Regions mapped to interval timers in TAU
Cube 4 profile reader integrated in ParaProf [Pavel]
TAU instrumentation components can use Score-P
Opari2 integrated in TAU
ParaProf, PerfDMF, and PerfExplorer interoperability with CUBE
LiveDVD updated from 32 bit FC11 to 32 bit and 64 bit FC16
Tutorials and outreach activities
To Do
Integrate a generic thread library callback mechanism
Tau2otf2 trace converter for legacy TAU traces
Event-based sampling / hybrid profiling integration (Zoltan/Chee Wai Lee)
PRIMA: VI-HPS visitors to U. Oregon
: Daniel Lorenz, Christian Roessel, Pavel Savianko
Summer 2012: Daniel Lorenz, Christian Roessel

11. Projects DOE NSF PRIMA Vancouver SUPER
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