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| # ADIOS2 Examples | ||
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| This directory contains examples of how to use ADIOS2 in different scenarios. | ||
| The examples are written mostly in C++, but also C, Fortran, Python, and Julia. | ||
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| They can be found in the following subdirectories, and they should be explored in the order that they are listed: | ||
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| 1. [hello](hello): The _hello_ examples are meant to introduce you to ADIOS2's IO capabilities and engines. | ||
| 2. [basics](basics): The _basics_ examples are meant to introduce you to basic concepts of ADIOS2, such as | ||
| global/joined/local arrays, values, and variables shapes. | ||
| 3. [useCases](useCases): The _useCases_ examples are meant to demonstrate how to use ADIOS2 in different scenarios, | ||
| such as in situ visualization, and fides schema. | ||
| 4. [plugins](plugins): The _plugins_ examples are meant to introduce you to the plugin capabilities of ADIOS2, such as | ||
| how to develop your own engine or operators. | ||
| 5. [simulations](simulations): The _simulations_ examples are meant to demonstrate how to integrate ADIOS2 within your | ||
| simulation code to read, write and/or stream your simulation data. |
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| ## ADIOS2 basics examples | ||
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| The _basics_ examples are meant to introduce you to basic concepts of ADIOS2, such as | ||
| global/joined/local arrays, values, and variables shapes. | ||
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| They can be found in the following subdirectories, and they should be explored in the order that they are listed: | ||
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| 1. [globalArray1D](globalArray1D): The _globalArray1D_ example demonstrates how to read and write an | ||
| 1-D global array with constant dimensions over time from multiple processors using ADIOS2's BP engine. | ||
| * Languages: C, Fortran | ||
| 2. [globalArrayND](globalArrayND): The _globalArrayND_ example demonstrates how to write an N-D global array with | ||
| constant dimensions over time from multiple processors using ADIOS2's BP engine. | ||
| * Languages: C++ | ||
| 3. [localArray](localArray): The _localArray_ example demonstrates how to write and read a local array per processor | ||
| with the same name from multiple processors using ADIOS2's BP engine. | ||
| * Languages: C++ | ||
| 4. [joinedArray](joinedArray): The _joinedArray_ example demonstrates how to write local array that is different only in | ||
| one dimension so that it can be joined into a global array with the same name from multiple processors at read time | ||
| using ADIOS2's ADIOS2's BP engine. | ||
| * Languages: C++ | ||
| 5. [values](values): The _values_ example demonstrates how to write and read a multiple types of variables with a single | ||
| value, such as global constant, global value, local constant, and local value using ADIOS2's BP engine. | ||
| * Languages: C++, Fortran | ||
| 6. [variablesShapes](variablesShapes): The _variablesShapes_ example demonstrates how to write supported variables | ||
| shapes using stepping and ADIOS2's BP engine. | ||
| * Languages: C++, C++ using high-level API | ||
| 7. [queryWorker](queryWorker): The _queryWorker_ example demonstrates how to read variables using ADIOS2's BP engine | ||
| and perform queries on the read data and streams the results. | ||
| * Languages: C++ |
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| ### ADIOS2 queryWorker example | ||
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| The _queryWorker_ example demonstrates how to read variables using ADIOS2's BP engine | ||
| and perform queries on the read data and streams the results. | ||
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| 1. q1.json is a json query file for one var | ||
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| 2. q2.json is a composite query | ||
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| 3. The bp*xml are the from heat transfer example with bp4 engine, and <adios-query> tag is added at the end for xml | ||
| query spec |
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| ## ADIOS2 hello examples | ||
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| The _hello_ examples are meant to introduce you to ADIOS2's IO capabilities and engines. | ||
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| They can be found in the following subdirectories, and they should be explored in the order that they are listed: | ||
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| 1. [helloWorld](helloWorld): The _helloWorld_ example demonstrates how to write a simple word and read it back using | ||
| ADIOS2's BP engine. | ||
| * Languages: C++, C++ using high-level API, C, Python, Python using high-level API | ||
| 2. [bpWriter](bpWriter): The _bpWriter_ examples demonstrate how to write a variable to using ADIOS2's BP engine. | ||
| * Languages: C++, C, Fortran, Python | ||
| 3. [bpReader](bpReader): The _bpReader_ examples demonstrate how to read a 1D/2D/3D variable using ADIOS2's BP engine. | ||
| * Languages: C++, Fortran, Python | ||
| 4. [bpFWriteCRead](bpFWriteCRead): The _bpFWriteCRead_ example demonstrates how to write a 2D variable with Fortran and | ||
| read a subset of it with C++, and vice versa using ADIOS2's BP engine. | ||
| * Languages: C++, Fortran | ||
| 5. [bpTimeWriter](bpTimeWriter): The _bpTimeWriter_ example demonstrates how to write two Variables (one is timestep) | ||
| using time aggregation using ADIOS2's BP engine. | ||
| * Languages: C++, Python | ||
| 6. [bpAttributeWriter](bpAttributeWriter): The _bpAttributeWriter_ example demonstrates how to write attributes using | ||
| ADIOS2's BP engine. | ||
| * Languages: C++ | ||
| 7. [bpFlushWriter](bpFlushWriter): The _bpFlushWriter_ example demonstrates how to flush a variable using ADIOS2's BP | ||
| engine. | ||
| * Languages: C++ | ||
| 8. [bpWriteReadCuda](bpWriteReadCuda): The _bpWriteReadCuda_ example demonstrates how to write and read a variable with | ||
| multiple time steps using ADIOS2's BP engine and leveraging CUDA. | ||
| * Languages: C++ | ||
| 9. [bpWriteReadHip](bpWriteReadHip): The _bpWriteReadHip_ example demonstrates how to write and read a variable with | ||
| multiple time steps using ADIOS2's BP engine and leveraging HIP. | ||
| * Languages: C++ | ||
| 10. [bpWriteReadKokkos](bpWriteReadKokkos): The _bpWriteReadOmp_ example demonstrates how to write and read a variable | ||
| with multiple time steps using ADIOS2's BP engine and leveraging Kokkos. | ||
| * Languages: C++ | ||
| 11. [datamanReader](datamanReader): The _datamanReader_ example demonstrates how to read variables in real-time WAN | ||
| streams using ADIOS's DataMan engine. | ||
| * Languages: C++, Python | ||
| 12. [datamanWriter](datamanWriter): The _datamanWriter_ example demonstrates how to write variables in real-time WAN | ||
| streams using ADIOS's DataMan engine. | ||
| * Languages: C++, Python | ||
| 13. [dataspacesReader](dataspacesReader): The _dataspacesReader_ example demonstrates how to read a variable using | ||
| ADIOS2's DATASPACES engine. | ||
| * Languages: C++ | ||
| 14. [dataspacesWriter](dataspacesWriter): The _dataspacesWriter_ example demonstrates how to write a variable using | ||
| ADIOS2's DATASPACES engine. | ||
| * Languages: C++ | ||
| 15. [hdf5Reader](hdf5Reader): The _hdf5Reader_ example demonstrates how to read variables using ADIOS2's HDF5 engine. | ||
| * Languages: C++ | ||
| 16. [hdf5Writer](hdf5Writer): The _hdf5Writer_ example demonstrates how to write variables using ADIOS2's HDF5 engine. | ||
| * Languages: C++ | ||
| 17. [hdf5SubFile](hdf5SubFile): The _hdf5SubFile_ example demonstrates how to write variables using ADIOS2's parallel | ||
| HDF5 engine leveraging the subfile feature. | ||
| * Languages: C++ | ||
| 18. [inlineMWE](inlineMWE): The _inlineMWE_ example demonstrates how to write and read a variable using ADIOS2's inline | ||
| engine. | ||
| * Languages: C++ | ||
| 19. [inlineFWriteCppRead](inlineFWriteCppRead): The _inlineFWriteCppRead_ example demonstrates how to write a 2D | ||
| variable with Fortran and read it back a subset of it with C++ using ADIOS2's inline engine. | ||
| * Languages: C++, Fortran | ||
| 20. [inlineReaderWriter](inlineReaderWriter): The _inlineReaderWriter_ example demonstrates how to write two Variables | ||
| (one is timestep) using time aggregation and ADIOS2's inline engine. | ||
| * Languages: C++ | ||
| 21. [sstReader](sstReader): The _sstReader_ example demonstrates how to read a variable using ADIOS2's SST engine. | ||
| * Languages: C++ | ||
| 22. [sstWriter](sstWriter): The _sstWriter_ example demonstrates how to write a variable using ADIOS2's SST engine. | ||
| * Languages: C++ | ||
| 23. [skeleton](skeleton): The _skeleton_ example demonstrates how to write and read a variable using an ADIOS2 skeleton | ||
| engine. | ||
| * Languages: C++ |
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| ## ADIOS2 plugins examples | ||
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| The _plugins_ examples are meant to introduce you to the plugin capabilities of ADIOS2, such as | ||
| how to develop your own engine or operators. | ||
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| They can be found in the following subdirectories, and they should be explored in the order that they are listed: | ||
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| 1. [engine](engine): The _engine_ example demonstrates how to develop the read/write capabilities of your ADIOS2 engine | ||
| and use it to read and write variables. | ||
| * Languages: C++ | ||
| 2. [operator](operator): The _operator_ example demonstrates how to read and write variables using the | ||
| ADIOS2/plugins/operators/EncryptionOperator and ADIOS2's BP engine. | ||
| * Languages: C++ |
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| ## ADIOS2 simulations examples | ||
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| The _simulations_ examples are meant to demonstrate how to integrate ADIOS2 within your | ||
| simulation code to read, write and/or stream your simulation data. | ||
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| They can be found in the following subdirectories, and they should be explored in the order that they are listed: | ||
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| 1. [korteweg-de-vries](korteweg-de-vries): The _korteweg-de-vries_ example demonstrates how to solve the initial value | ||
| problem for the Korteweg de-Vries equation via the Zabusky and Krustal scheme and integrate ADIOS2 for its IO | ||
| capabilities. | ||
| * Languages: C++, Python | ||
| 2. [lorenz_ode](lorenz_ode): The _lorenz_ode_ example demonstrates how to solve the Lorenz system of ordinary | ||
| differential equations and integrate ADIOS2 for its IO capabilities. | ||
| * Languages: C++ | ||
| 3. [gray-scott](gray-scott): The _gray-scott_ example demonstrates how to perform simulation with the Gray-Scott | ||
| reaction diffusion model and integrate ADIOS2 for its IO capabilities. | ||
| * Languages: C++ | ||
| 4. [gray-scott-struct](gray-scott-struct): The _gray-scott-struct_ example demonstrates how to perform a simulation with | ||
| the Gray-Scott reaction diffusion model using a struct that defines user defined data types and integrate ADIOS2 for | ||
| its IO capabilities. | ||
| * Languages: C++ | ||
| 5. [gray-scott-kokkos](gray-scott-kokkos): The _gray-scott-kokkos_ example demonstrates how to perform a simulation with | ||
| the Gray-Scott reaction diffusion model using Kokkos and integrate ADIOS2 for its IO capabilities. | ||
| * Languages: C++ | ||
| 6. [GrayScott.jl](GrayScott.jl): The _GrayScott.jl_ example demonstrates how to perform a simulation with the Gray-Scott | ||
| reaction diffusion model and integrate ADIOS2 for its IO capabilities. | ||
| * Languages: Julia | ||
| 7. [heatTransfer](heatTransfer): The _heatTransfer_ example demonstrates how to solve a 2D Poisson equation for | ||
| temperature in homogeneous media using finite differences and integrate ADIOS2 for its IO capabilities. | ||
| * Languages: C++ |
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| ### ADIOS2 gray-scott-kokkos example | ||
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| This is a 3D 7-point stencil code to simulate the following [Gray-Scott | ||
| reaction diffusion model](https://doi.org/10.1126/science.261.5118.189): | ||
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| #### Differences from the gray-scott example | ||
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| It uses Kokkos to run the simulation on GPU. | ||
| Please use the installed Gray-Scott example directory but run adios2_simulations_gray-scott-kokkos binary. |
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