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]

  • article-journal
    article-journal
    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).
     
  • paper-conference
    paper-conference
    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. Springer (2017).
     

2016 [to top]

  • paper-conference
    paper-conference
    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 (2016).
     
  • article-journal
    article-journal
    Gracia, J., 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).
     
  • paper-conference
    paper-conference
    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. Springer (2016).
     
  • paper-conference
    paper-conference
    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. IEEE (2016).
     
  • article-journal
    article-journal
    Niethammer, C., Khabi, D., Zhou, H., Marjanovic, V., Gracia, J.: Impact of the Entering Time on the Performance of MPI Collective Operations. International Journal on Advances in Systems and Measurements. 9, 48--57 (2016).
     
  • book
    book
    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. Springer (2016).
     
  • paper-conference
    paper-conference
    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. IEEE Computer Society (2016).
     

2015 [to top]

  • paper-conference
    paper-conference
    Zhou, H., Marjanovic, V., Niethammer, C., Gracia, J.: A Bandwidth-saving Optimization for MPI Broadcast Collective Operation. 44th International Conference on Parallel Processing Workshops, ICPPW. S. 111-118. , Beijing, China (2015).
     
  • paper-conference
    paper-conference
    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. IARIA (2015).
     
  • paper-conference
    paper-conference
    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. IARIA (2015).
     
  • paper-conference
    paper-conference
    Zhou, H., Idrees, K., Gracia, J.: 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 (2015).
     
  • paper-conference
    paper-conference
    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 (2015).
     
  • book
    book
    Niethammer, C., Gracia, J., 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. Springer (2015).
     
  • paper-conference
    paper-conference
    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. IARIA (2015).
     

2014 [to top]

  • article-journal
    article-journal
    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).
     
  • paper-conference
    paper-conference
    Zhou, H., Mhedheb, Y., Idrees, K., Glass, C.W., Gracia, J., 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 (2014).
     
  • paper-conference
    paper-conference
    Fürlinger, K., Glass, C.W., Gracia, J., 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.\'ıs, Zilinskas, J., Costan, A., Cascella, R.G., Kecskemeti, G., Jeannot, E., Cannataro, M., Ricci, L., Benkner, S., Petit, S., Scarano, V., Gracia, J., Hunold, S., Scott, S.L., Lankes, S., Lengauer, C., Carretero, J., 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. Springer (2014).
     
  • book
    book
    Lopes, L.\'ıs, Zilinskas, J., Costan, A., Cascella, R.G., Kecskemeti, G., Jeannot, E., Cannataro, M., Ricci, L., Benkner, S., Petit, S., Scarano, V., Gracia, J., Hunold, S., Scott, S.L., Lankes, S., Lengauer, C., Carretero, J., 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. Springer (2014).
     
  • book
    book
    Lopes, L.\'ıs, Zilinskas, J., Costan, A., Cascella, R.G., Kecskemeti, G., Jeannot, E., Cannataro, M., Ricci, L., Benkner, S., Petit, S., Scarano, V., Gracia, J., Hunold, S., Scott, S.L., Lankes, S., Lengauer, C., Carretero, J., 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. Springer (2014).
     
  • paper-conference
    paper-conference
    Marjanovic, V., Gracia, J., 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 (2014).
     
  • book
    book
    Knüpfer, A., Gracia, J., 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. Springer (2014).
     

2013 [to top]

  • paper-conference
    paper-conference
    Brinkmann, S., Gracia, J.: CppSs--a C++ Library for Efficient Task Parallelism. INFOCOMP 2013, The Third International Conference on Advanced Communications and Computation. S. 39--42. IARIA (2013).
     
  • paper-conference
    paper-conference
    Baumann, T.M., Gracia, J.: 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 (2013).
     
  • paper-conference
    paper-conference
    Baumann, T.M., Gracia, J.: 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 (2013).
     
  • paper-conference
    paper-conference
    Schubert, L., Kuper, J., Gracia, J.: 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 (2013).
     
  • article-journal
    article-journal
    Subotic, V., Brinkmann, S., Marjanovic, V., Badia, R.M., Gracia, J., Niethammer, C., Ayguadé, E., Labarta, J., Valero, M.: Programmability and portability for exascale: Top down programming methodology and tools with StarSs. J. Comput. Science. 4, 450--456 (2013).
     
  • book
    book
    Cheptsov, A., Brinkmann, S., Gracia, J., 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. Springer (2013).
     

2012 [to top]

  • paper-conference
    paper-conference
    Niethammer, C., Glass, C.W., Gracia, J.: 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 (2012).
     
  • article-journal
    article-journal
    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).
     
  • paper-conference
    paper-conference
    Gracia, J., 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 (2012).
     
  • paper-conference
    paper-conference
    Brinkmann, S., Gracia, J., Niethammer, C.: Task Debugging with TEMANEJO. In: Cheptsov, A., Brinkmann, S., Gracia, J., 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. Springer (2012).
     

2011 [to top]

  • paper-conference
    paper-conference
    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. Springer (2011).
     
  • paper-conference
    paper-conference
    Brinkmann, S., Gracia, J., Niethammer, C., Keller, R.: TEMANEJO – 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 (2011).
     
  • paper-conference
    paper-conference
    Keller, R., Brinkmann, S., Gracia, J., 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 (2011).
     

2010 [to top]

  • article-journal
    article-journal
    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]

  • paper-conference
    paper-conference
    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., Stehlé, 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 (2009).
     
  • book
    book
    Gracia, J., de Colle, F., Downes, T. Hrsg: Jets From Young Stars V. (2009).
     
  • article-journal
    article-journal
    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]

  • article-journal
    article-journal
    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).
     
  • article-journal
    article-journal
    Čemeljić, M., Gracia, J., Vlahakis, N., Tsinganos, K.: Resistive jet simulations extending radially self-similar magnetohydrodynamic models. \mnras. 389, 1022-1032 (2008).
     
  • article-journal
    article-journal
    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).
     
  • article-journal
    article-journal
    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]

  • article-journal
    article-journal
    Katarzyński, 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).
     
  • article-journal
    article-journal
    Gracia, J., Vlahakis, N., Tsinganos, K.: Jet simulations extending radially self-similar magnetohydrodynamics models. \mnras. 367, 201-210 (2006).
     
  • article-journal
    article-journal
    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., Lähteenmäki, 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., Sillanpää, 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-Vilaró, 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).
     
  • article-journal
    article-journal
    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 30þinspm telescope. \aap. 456, 117-129 (2006).
     
  • article-journal
    article-journal
    Katarzyński, 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]

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

2004 [to top]

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

2003 [to top]

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

2001 [to top]

  • article-journal
    article-journal
    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).