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magistraleinformaticanetworking:spd:lezioni20.21 [15/02/2021 alle 12:17 (3 anni fa)]
Massimo Coppola creata |
magistraleinformaticanetworking:spd:lezioni20.21 [01/03/2021 alle 14:52 (3 anni fa)]
Massimo Coppola [Slides, Notes and References to papers] |
| ====== SPD 20-21 Course Journal ====== | =====Journal of Lessons, SPD year 2020-2021==== |
| | ====Journal==== |
| |
| Page currently empty | * 15/02/2021 **NO LESSON** |
| | * 17/02/2021 **Course introduction** -- Parallel programming frameworks and high-level approach to parallel programming over different platforms: MPI, TBB, OpenCL as main examples, oneAPI and SYCL as unifying approaches; course organization and prerequisites; reference books and studying material. \\ -- ** MPI (Message Passing Interface) standard ** -- brief history and aim of the standard, single program / multiple data execution model, compilation and linkage model; issues in supporting multiple programming languages and uses (application, utility library and programming language support) with a static compilation and linkage approach. Portability in parallel programming: functional and non-functional aspects, performance tuning and performance debugging. **MPI basic concepts** MPI as a parallel framework that supports a structured approach to parallel programming. Basic concepts of MPI: communicators (definition, purpose, difference between inter and intra-communicators, process ranks). |
| | * 22/02/2021 **NO LESSON** |
| | * 24/02/2021 **MPI basic concepts** -- Point to point communication (concepts of envelope, local/global completion, blocking/non-blocking primitive, send modes); collective communications (definition, communication scope, global serialization, freedom of implementation in the standard); MPI datatypes (basic meaning and use, primitive / derived datatypes); MPI Datatypes relationship with sequential language types. MPI library initialization and basic MPI usage; point to point communication semantics (buffer behaviour, receive, status objects, MPI_PROC_NULL); MPI primitive datatypes. |
| | * 01/03/2021 **MPI** – Derived MPI datatypes (purpose as explicitly defined meta-data provided to the MPI implementation, multiple language bindings, code-instantiated metadata, examples). MPI datatypes semantics: typemap and type signature (matching rules for communication, role in MPI-performed packing and unpacking); core primitives for datatype creation ( MPI_Type_* : contiguous, vector, hvector, indexed, hindexed, struct; commit, free) and examples. Point to point communication modes (MPI_BSEND, MPI_SSEND; MPI_RSend usage); non-blocking communication (Wait and Test group of primitives, semantics, MPI_Request object handles to active requests); canceling and testing cancellation of non-blocking primitives (issues and pitfalls, interaction with MPI implementation, e.g. MPI_finalize). |
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| | ====Slides, Notes and References to papers==== |
| | |
| | ^ Date ^ Slides ^ Recordings ^ Notes ^ References / Info | |
| | | 17/02 | {{ :magistraleinformaticanetworking:spd:2020:spd20-21_course_intro.pdf | Course introduction}} | [[https://unipiit.sharepoint.com/sites/a__td_47439/Shared%20Documents/Lezioni-test/Recordings/Riunione%20in%20_Lezioni-test_-20210217_163525-Registrazione%20della%20riunione.mp4?web=1 | MS TEAMS link 1]] | | | |
| | | 17/02 | {{ :magistraleinformaticanetworking:spd:2020:mpi-lesson1.pdf | MPI lesson 1}} | [[https://unipiit.sharepoint.com/sites/a__td_47439/Shared%20Documents/Lezioni-test/Recordings/Riunione%20in%20_Lezioni-test_-20210217_172953-Registrazione%20della%20riunione.mp4?web=1 | MS TEAMS link 2]] | | | |
| | | 24/02 | {{ :magistraleinformaticanetworking:spd:2020:mpi-lesson1.pdf | MPI lesson 1}} {{ :magistraleinformaticanetworking:spd:2020:mpi-lesson2.pdf | MPI Lesson 2}} | [[https://unipiit.sharepoint.com/sites/a__td_47439/Shared%20Documents/Lezioni-test/Recordings/Riunione%20in%20_SPD%20Lessons_-20210224_163405-Registrazione%20della%20riunione.mp4?web=1 | MS TEAMS link 3]] [[https://unipiit.sharepoint.com/sites/a__td_47439/Shared%20Documents/Lezioni-test/Recordings/Riunione%20in%20_SPD%20Lessons_-20210224_174939-Registrazione%20della%20riunione.mp4?web=1 | MS TEAMS link 4]] | | | |
| | | 1/03 | {{ :magistraleinformaticanetworking:spd:2020:mpi-lesson2.pdf | MPI Lesson 2}} {{ :magistraleinformaticanetworking:spd:2020:mpi-lesson3.pdf | MPI lesson 3}} | [[https://unipiit.sharepoint.com/sites/a__td_47439/Shared%20Documents/Lezioni-test/Recordings/Riunione%20in%20_SPD%20Lessons_-20210301_142527-Registrazione%20della%20riunione.mp4?web=1 | MS TEAMS link 5]] [[https://unipiit.sharepoint.com/sites/a__td_47439/Shared%20Documents/Lezioni-test/Recordings/Riunione%20in%20_SPD%20Lessons_-20210301_152431-Registrazione%20della%20riunione.mp4?web=1 | MS TEAMS link 6]] | | |
