Dr. José Gracia

Dr. José Gracia

High Performance Computing Center Stuttgart (HLRS)
Nobelstr. 19
70569 Stuttgart
Germany

Department

Phone

+49 (0) 711 / 685-87208

Fax

+49 (0) 711 / 685-65832

Email

Functions

  • Tutorial "Parallel Programming with MPI/SMPSs, ICS 2011, Tucson, US."
  • Lecture 2012 "AIM/CSE Praktikum, Versuch 2: Parallele Programmierung hello_mpi.c, communication.c, fp_array.c"
  • Lecture "Introduction to OpenMP" (2014)
  • Lecture "Introduction to OpenMP" (2015)

Projects

  • POP
  • SmartDASH
  • Mont Blanc 3
  • DASH
  • Mont Blanc 2
  • ParaPhrase
  • CRESTA
  • TEXT - Towards Exascale Applications
  • PRACE - Partnership for Advanced Computing in Europe
  • ParMA - Parallel Programming for Multi-core Architectures
  • DORII - Deployment of Remote Instrumentation Infrastructure

Scientific Interests

  • New Parallel Programming Models, e.g. StarSs/OmpSs, Chapel, and Tools for those models, e.g. Temanejo
  • HPC with high-level languages, e.g. Python/Numpy

Publications

[2017] [2016] [2015] [2014] [2013] [2012] [2011] [2010] [2009] [2008] [2006] [2005] [2004] [2003] [2001]

2017 [ to top ]

  • Zhou, H., Gracia, J.: Application Productivity and Performance Evaluation of Transparent Locality-aware One-sided Communication Primitives. International Journal of Networking and Computing. 7, 136--153 (2017).
     
  • Schuchart, J., Nachtmann, M., Gracia, J.: Patterns for OpenMP Task Data Dependency Overhead Measurements. OpenMP: Scaling OpenMP for Exascale Performance and Portability - 13th International Workshop on OpenMP, IWOMP 2017, Stony Brook, NY, USA, September 21-22, 2017, Proceedings. S. 156--168. OpenMP: Scaling OpenMP for Exascale Performance and Portability - 13th International Workshop on OpenMP, IWOMP 2017, Stony Brook, NY, USA, September 21-22, 2017, Proceedings (2017).
     

2016 [ to top ]

  • Zhou, H., Gracia, J.: Asynchronous progress design for a MPI-based PGAS one-sided communication system. 22nd IEEE International Conference on Parallel and Distributed Systems, ICPADS 2016, Wuhan, China, December 13-16, 2016. S. 999--1006. 22nd IEEE International Conference on Parallel and Distributed Systems, ICPADS 2016, Wuhan, China, December 13-16, 2016 (2016).
     
  • Gracia, J.'e, Struckmann, N., Rilli, J., Keller, R.: Data persistency for fault-tolerance using MPI semantics. International Journal on Advances in Systems and Measurement. 9, 58-65 (2016).
     
  • Nachtmann, M., Gracia, J.: Enabling Model-Centric Debugging for Task-Based Programming Models -- a Tasking Control Interface. In: Knüpfer, A., Hilbrich, T., Niethammer, C., Gracia, J., Nagel, W.E., und Resch, M.M. (Hrsg.) Tools for High Performance Computing 2015, Proceedings of the 9th International Workshop on Parallel Tools for High Performance Computing, September 2015, Dresden, Germany. S. 147--160. Tools for High Performance Computing 2015, Proceedings of the 9th International Workshop on Parallel Tools for High Performance Computing, September 2015, Dresden, Germany (2016).
     
  • Marjanovic, V., Gracia, J., Glass, C.W.: HPC Benchmarking: Problem Size Matters. Proceedings of the 7th International Workshop on Performance Modeling, Benchmarking, and Simulation of High Performance Computing Systems. S. 1-10. Proceedings of the 7th International Workshop on Performance Modeling, Benchmarking, and Simulation of High Performance Computing Systems (2016).
     
  • Niethammer, C., Khabi, D., Zhou, H., Marjanovic, V., Gracia, J.'e: Impact of the Entering Time on the Performance of MPI Collective Operations. International Journal on Advances in Systems and Measurements. 9, 48--57 (2016).
     
  • Knüpfer, A., Hilbrich, T., Niethammer, C., Gracia, J., Nagel, W.E., Resch, M.M. Hrsg: Tools for High Performance Computing 2015 : Proceedings of the 9th International Workshop on Parallel Tools for High Performance Computing, September 2015, Dresden, Germany. (2016).
     
  • Zhou, H., Gracia, J.: Towards performance portability through locality-awareness for applications using one-sided communication primitives. Forth International Symposium on Computing and Networking, CANDAR Hiroshima, Japan, November 22-25, 2016. S. 536--542. Forth International Symposium on Computing and Networking, CANDAR Hiroshima, Japan, November 22-25, 2016 (2016).
     

2015 [ to top ]

  • Zhou, H., Marjanovic, V., Niethammer, C., Gracia, J.'e: A Bandwidth-saving Optimization for MPI Broadcast Collective Operation. 44th International Conference on Parallel Processing Workshops, ICPPW. S. 111-118. 44th International Conference on Parallel Processing Workshops, ICPPW, Beijing, China (2015).
     
  • Moniruzzaman, M., Idrees, K., Rossbory, M., Gracia, J.: An adaptive load-balancing task-scheduler for FastFlow. Proceedings of International Conference on Advanced Communications and Computation (INFOCOMP 2015). S. 6-12. Proceedings of International Conference on Advanced Communications and Computation (INFOCOMP 2015) (2015).
     
  • Niethammer, C., Khabi, D., Zhou, H., Marjanovic, V., Gracia, J.: Impact of the Entering Time on Collective Performance. Proceedings of International Conference on Advanced Communications and Computation (INFOCOMP 2015). S. 60-65. Proceedings of International Conference on Advanced Communications and Computation (INFOCOMP 2015) (2015).
     
  • Zhou, H., Idrees, K., Gracia, J.'e: Leveraging MPI-3 Shared-Memory Extensions for Efficient PGAS Runtime Systems. Euro-Par 2015: Parallel Processing - 21st International Conference on Parallel and Distributed Computing, Vienna, Austria, August 24-28, 2015, Proceedings. S. 373--384. Euro-Par 2015: Parallel Processing - 21st International Conference on Parallel and Distributed Computing, Vienna, Austria, August 24-28, 2015, Proceedings (2015).
     
  • Hünich, D., Knüpfer, A., Gracia, J.: Providing Parallel Debugging for DASH Distributed Data Structures with GDB. Proceedings of the International Conference on Computational Science, ICCS 2015, Computational Science at the Gates of Nature, Reykjav'ık, Iceland, 1-3 June, 2015, 2014. S. 1383--1392. Proceedings of the International Conference on Computational Science, ICCS 2015, Computational Science at the Gates of Nature, Reykjav'ık, Iceland, 1-3 June, 2015, 2014 (2015).
     
  • Niethammer, C., Gracia, J.'e, Knüpfer, A., Resch, M.M., Nagel, W.E. Hrsg: Tools for High Performance Computing 2014, Proceedings of the 8th International Workshop on Parallel Tools for High Performance Computing, October 2014, HLRS, Stuttgart, Germany. (2015).
     
  • Gracia, J., Sethi, M.W., Struckmann, N., Keller, R.: Towards data persistency for fault-tolerance using MPI semantics. Proceedings of International Conference on Advanced Communications and Computation (INFOCOMP 2015). S. 26--29. Proceedings of International Conference on Advanced Communications and Computation (INFOCOMP 2015) (2015).
     

2014 [ to top ]

  • Stute, M., Gracia, J., Vlahakis, N., Tsinganos, K., Mignone, A., Massaglia, S.: 3D simulations of disc winds extending radially self-similar MHD models. mnras. 439, 3641-3648 (2014).
     
  • Zhou, H., Mhedheb, Y., Idrees, K., Glass, C.W., Gracia, J.'e, Fürlinger, K.: DART-MPI: An MPI-based Implementation of a PGAS Runtime System. Proceedings of the 8th International Conference on Partitioned Global Address Space Programming Models, PGAS 2014, Eugene, OR, USA, October 6-10, 2014. S. 3. Proceedings of the 8th International Conference on Partitioned Global Address Space Programming Models, PGAS 2014, Eugene, OR, USA, October 6-10, 2014 (2014).
     
  • Fürlinger, K., Glass, C.W., Gracia, J.'e, Knüpfer, A., Tao, J., Hünich, D., Idrees, K., Maiterth, M., Mhedheb, Y., Zhou, H.: DASH: Data Structures and Algorithms with Support for Hierarchical Locality. In: Lopes, L.\'is, Zilinskas, J., Costan, A., Cascella, R.G., Kecskemeti, G., Jeannot, E., Cannataro, M., Ricci, L., Benkner, S., Petit, S., Scarano, V., Gracia, J.'e, Hunold, S., Scott, S.L., Lankes, S., Lengauer, C., Carretero, J.'us, Breitbart, J., und Alexander, M. (Hrsg.) Euro-Par 2014: Parallel Processing Workshops - Euro-Par 2014 International Workshops, Porto, Portugal, August 25-26, 2014, Revised Selected Papers, Part II. S. 542--552. Euro-Par 2014: Parallel Processing Workshops - Euro-Par 2014 International Workshops, Porto, Portugal, August 25-26, 2014, Revised Selected Papers, Part II (2014).
     
  • Lopes, L.\'is, Zilinskas, J., Costan, A., Cascella, R.G., Kecskemeti, G., Jeannot, E., Cannataro, M., Ricci, L., Benkner, S., Petit, S., Scarano, V., Gracia, J.'e, Hunold, S., Scott, S.L., Lankes, S., Lengauer, C., Carretero, J.'us, Breitbart, J., Alexander, M. Hrsg: Euro-Par 2014: Parallel Processing Workshops - Euro-Par 2014 International Workshops, Porto, Portugal, August 25-26, 2014, Revised Selected Papers, Part I. (2014).
     
  • Lopes, L.\'is, Zilinskas, J., Costan, A., Cascella, R.G., Kecskemeti, G., Jeannot, E., Cannataro, M., Ricci, L., Benkner, S., Petit, S., Scarano, V., Gracia, J.'e, Hunold, S., Scott, S.L., Lankes, S., Lengauer, C., Carretero, J.'us, Breitbart, J., Alexander, M. Hrsg: Euro-Par 2014: Parallel Processing Workshops - Euro-Par 2014 International Workshops, Porto, Portugal, August 25-26, 2014, Revised Selected Papers, Part II. (2014).
     
  • Marjanovic, V., Gracia, J.'e, Glass, C.W.: Performance Modeling of the HPCG Benchmark. High Performance Computing Systems. Performance Modeling, Benchmarking, and Simulation - 5th International Workshop, PMBS 2014, New Orleans, LA, USA, November 16, 2014. Revised Selected Papers. S. 172--192. High Performance Computing Systems. Performance Modeling, Benchmarking, and Simulation - 5th International Workshop, PMBS 2014, New Orleans, LA, USA, November 16, 2014. Revised Selected Papers (2014).
     
  • Knüpfer, A., Gracia, J.'e, Nagel, W.E., Resch, M.M. Hrsg: Tools for High Performance Computing 2013, Proceedings of the 7th International Workshop on Parallel Tools for High Performance Computing, September 2013, ZIH, Dresden, Germany. (2014).
     

2013 [ to top ]

  • Brinkmann, S., Gracia, J.'e: CppSs--a C++ Library for Efficient Task Parallelism. INFOCOMP 2013, The Third International Conference on Advanced Communications and Computation. S. 39--42. INFOCOMP 2013, The Third International Conference on Advanced Communications and Computation (2013).
     
  • Baumann, T.M., Gracia, J.'e: Cudagrind: A Valgrind Extension for CUDA. Parallel Computing: Accelerating Computational Science and Engineering (CSE), Proceedings of the International Conference on Parallel Computing, ParCo 2013, 10-13 September 2013, Garching (near Munich), Germany. S. 763--772. Parallel Computing: Accelerating Computational Science and Engineering (CSE), Proceedings of the International Conference on Parallel Computing, ParCo 2013, 10-13 September 2013, Garching (near Munich), Germany (2013).
     
  • Baumann, T.M., Gracia, J.'e: Cudagrind: Memory-Usage Checking for CUDA. Tools for High Performance Computing 2013, Proceedings of the 7th International Workshop on Parallel Tools for High Performance Computing, September 2013, ZIH, Dresden, Germany. S. 67--78. Tools for High Performance Computing 2013, Proceedings of the 7th International Workshop on Parallel Tools for High Performance Computing, September 2013, ZIH, Dresden, Germany (2013).
     
  • Schubert, L., Kuper, J., Gracia, J.'e: POLCA - A Programming Model for Large Scale, Strongly Heterogeneous Infrastructures. Parallel Computing: Accelerating Computational Science and Engineering (CSE), Proceedings of the International Conference on Parallel Computing, ParCo 2013, 10-13 September 2013, Garching (near Munich), Germany. S. 43--52. Parallel Computing: Accelerating Computational Science and Engineering (CSE), Proceedings of the International Conference on Parallel Computing, ParCo 2013, 10-13 September 2013, Garching (near Munich), Germany (2013).
     
  • Subotic, V., Brinkmann, S., Marjanovic, V., Badia, R.M., Gracia, J.'e, Niethammer, C., Ayguad'e, E., Labarta, J.'us, Valero, M.: Programmability and portability for exascale: Top down programming methodology and tools with StarSs. J. Comput. Science. 4, 450--456 (2013).
     
  • Cheptsov, A., Brinkmann, S., Gracia, J.'e, Resch, M.M., Nagel, W.E. Hrsg: Tools for High Performance Computing 2012 - Contributed Papers Presented at the 6th International Parallel Tools Workshop, Stuttgart, Germany, September 25-26, 2012. (2013).
     

2012 [ to top ]

  • Niethammer, C., Glass, C.W., Gracia, J.'e: Avoiding Serialization Effects in Data / Dependency Aware Task Parallel Algorithms for Spatial Decomposition. 10th IEEE International Symposium on Parallel and Distributed Processing with Applications, ISPA 2012, Leganes, Madrid, Spain, July 10-13, 2012. S. 743--748. 10th IEEE International Symposium on Parallel and Distributed Processing with Applications, ISPA 2012, Leganes, Madrid, Spain, July 10-13, 2012 (2012).
     
  • Stute, M., Gracia, J.: Comparison of synthetic maps from truncated jet-formation models with YSO jet observations. II. The effect of varying inclinations. aap. 538, A116 (2012).
     
  • Gracia, J.'e, Niethammer, C., Hasert, M., Brinkmann, S., Keller, R., Glass, C.W.: Hybrid MPI/StarSs - A Case Study. 10th IEEE International Symposium on Parallel and Distributed Processing with Applications, ISPA 2012, Leganes, Madrid, Spain, July 10-13, 2012. S. 48--55. 10th IEEE International Symposium on Parallel and Distributed Processing with Applications, ISPA 2012, Leganes, Madrid, Spain, July 10-13, 2012 (2012).
     
  • Brinkmann, S., Gracia, J.'e, Niethammer, C.: Task Debugging with TEMANEJO. In: Cheptsov, A., Brinkmann, S., Gracia, J.'e, Resch, M.M., und Nagel, W.E. (Hrsg.) Tools for High Performance Computing 2012 - Contributed Papers Presented at the 6th International Parallel Tools Workshop, Stuttgart, Germany, September 25-26, 2012. S. 13--21. Tools for High Performance Computing 2012 - Contributed Papers Presented at the 6th International Parallel Tools Workshop, Stuttgart, Germany, September 25-26, 2012 (2012).
     

2011 [ to top ]

  • Cheptsov, A., Koller, B., Salon, S., Lazzari, P., Gracia, J.: Analysis and Optimization of Performance Characteristics for MPI Parallel Scientific Applications on the Grid (A Case Study for the OPATM-BFM Simulation Application). Remote Instrumentation Services on the e-Infrastructure. S. 241--253. Remote Instrumentation Services on the e-Infrastructure (2011).
     
  • Brinkmann, S., Gracia, J.'e, Niethammer, C., Keller, R.: TEMANEJO textendash a debugger for task based parallel programming models. Applications, Tools and Techniques on the Road to Exascale Computing, Proceedings of the conference ParCo 2011, 31 August - 3 September 2011, Ghent, Belgium. S. 639--645. Applications, Tools and Techniques on the Road to Exascale Computing, Proceedings of the conference ParCo 2011, 31 August - 3 September 2011, Ghent, Belgium (2011).
     
  • Keller, R., Brinkmann, S., Gracia, J.'e, Niethammer, C.: Temanejo: Debugging of Thread-Based Task-Parallel Programs in StarSS. Tools for High Performance Computing 2011 - Proceedings of the 5th International Workshop on Parallel Tools for High Performance Computing, ZIH, Dresden, September 2011. S. 131--137. Tools for High Performance Computing 2011 - Proceedings of the 5th International Workshop on Parallel Tools for High Performance Computing, ZIH, Dresden, September 2011 (2011).
     

2010 [ to top ]

  • Stute, M., Gracia, J., Tsinganos, K., Vlahakis, N.: Comparison of synthetic maps from truncated jet-formation models with YSO jet observations. aap. 516, A6 (2010).
     

2009 [ to top ]

  • Cabrit, S., Bocchi, M., Camenzind, M., Ciardi, A., de Colle, F., Downes, T., Ferreira, J., Frank, A., Gracia, J., Lebedev, S., Marrochino, A., Massaglia, S., Matsakos, T., O'Sullivan, J., Stehl'e, C., Stute, M., Suzuki-Vidal, F., Tesileanu, O., Tsinganos, K., Zanni, C.: Dynamics of magnetized YSO jets: Examples of results from the JETSET network. Revista Mexicana de Astronomia y Astrofisica Conference Series. S. 171-178. Revista Mexicana de Astronomia y Astrofisica Conference Series (2009).
     
  • Gracia, J., de Colle, F., Downes, T. Hrsg: Jets From Young Stars V. Jets From Young Stars V (2009).
     
  • Gracia, J., Vlahakis, N., Agudo, I., Tsinganos, K., Bogovalov, S.V.: Synthetic Synchrotron Emission Maps from MHD Models for the Jet of M87. apj. 695, 503-510 (2009).
     

2008 [ to top ]

  • Gracia, J., Bogovalov, S.V., Tsinganos, K.: MHD Models and Synthetic Synchrotron Maps for the Jet of M87. International Journal of Modern Physics D. 17, 1687-1693 (2008).
     
  • v Cemelji'c, M., Gracia, J., Vlahakis, N., Tsinganos, K.: Resistive jet simulations extending radially self-similar magnetohydrodynamic models. mnras. 389, 1022-1032 (2008).
     
  • Stute, M., Tsinganos, K., Vlahakis, N., Matsakos, T., Gracia, J.: Stability and structure of analytical MHD jet formation models with a finite outer disk radius. aap. 491, 339-351 (2008).
     
  • De Colle, F., Gracia, J., Murphy, G.: The Effect of a Stellar Magnetic Variation on the Jet Velocity. apj. 688, 1137-1141 (2008).
     

2006 [ to top ]

  • Katarzy'nski, K., Ghisellini, G., Tavecchio, F., Gracia, J., Maraschi, L.: Hard TeV spectra of blazars and the constraints to the infrared intergalactic background. mnras. 368, L52-L56 (2006).
     
  • Gracia, J., Vlahakis, N., Tsinganos, K.: Jet simulations extending radially self-similar magnetohydrodynamics models. mnras. 367, 201-210 (2006).
     
  • Ostorero, L., Wagner, S.J., Gracia, J., Ferrero, E., Krichbaum, T.P., Britzen, S., Witzel, A., Nilsson, K., Villata, M., Bach, U., Barnaby, D., Bernhart, S., Carini, M.T., Chen, C.W., Chen, W.P., Ciprini, S., Crapanzano, S., Doroshenko, V., Efimova, N.V., Emmanoulopoulos, D., Fuhrmann, L., Gabanyi, K., Giltinan, A., Hagen-Thorn, V., Hauser, M., Heidt, J., Hojaev, A.S., Hovatta, T., Hroch, F., Ibrahimov, M., Impellizzeri, V., Ivanidze, R.Z., Kachel, D., Kraus, A., Kurtanidze, O., L\ähteenmäki, A., Lanteri, L., Larionov, V.M., Lin, Z.Y., Lindfors, E., Munz, F., Nikolashvili, M.G., Nucciarelli, G., O'Connor, A., Ohlert, J., Pasanen, M., Pullen, C., Raiteri, C.M., Rector, T.A., Robb, R., Sigua, L.A., Sillanp\ää, A., Sixtova, L., Smith, N., Strub, P., Takahashi, S., Takalo, L.O., Tapken, C., Tartar, J., Tornikoski, M., Tosti, G., Tröller, M., Walters, R., Wilking, B.A., Wills, W., Agudo, I., Aller, H.D., Aller, M.F., Angelakis, E., Klare, J., Körding, E., Strom, R.G., Teräsranta, H., Ungerechts, H., Vila-Vilar'o, B.: Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71. I. Simultaneous broadband observations during November 2003. aap. 451, 797-807 (2006).
     
  • Agudo, I., Krichbaum, T.P., Ungerechts, H., Kraus, A., Witzel, A., Angelakis, E., Fuhrmann, L., Bach, U., Britzen, S., Zensus, J.A., Wagner, S.J., Ostorero, L., Ferrero, E., Gracia, J., Grewing, M.: Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71. II. A search for intra-day variability at millimetre wavelengths with the IRAM 30thinspm telescope. aap. 456, 117-129 (2006).
     
  • Katarzy'nski, K., Ghisellini, G., Svensson, R., Gracia, J.: The cyclo-synchrotron process and particle heating through the absorption of photons. aap. 451, 739-746 (2006).
     

2005 [ to top ]

  • Stute, M., Gracia, J., Camenzind, M.: Effects of a solid surface on jet formation around neutron stars. aap. 436, 607-613 (2005).
     
  • Gracia, J., Tsinganos, K., Bogovalov, S.V.: Magnetic collimation of the relativistic jet in M 87. aap. 442, L7-L10 (2005).
     

2004 [ to top ]

  • Gracia, J., Camenzind, M.: Spectral Energy Distribution of Bimodal Accretion Flows. Progress of Theoretical Physics Supplement. 155, 333-334 (2004).
     

2003 [ to top ]

  • Gracia, J., Peitz, J., Keller, C., Camenzind, M.: Evolution of bimodal accretion flows. mnras. 344, 468-472 (2003).
     

2001 [ to top ]

  • Rivinius, T., Stefl, S., Stahl, O., Wolf, B., Kaufer, A., Baade, D., Dumm, T., Gäng, T., Gracia, J., Gummersbach, C., Jankovics, K.L., Kovacs, J., Lehmann, H., Mandel, H., Peitz, J., Schafer, D., Schweickhardt, J., Schmutz, W., Szeifert, T., Tubbesing, S.: Stellar and circumstellar variability of the Be star mu Cen IV. Journal of Astronomical Data. 7, 5 (2001).