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CHANGELOG.md

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Change Log

All notable changes to the CLAW Compiler project are documented in this file.

[2.1] - 2021-06-03

Build system

  • added out of source build
  • removed CMake-based tests
  • made tests run on internal install directory
  • added CMake option ANT_HOME to explicitly specify Apache Ant installation
  • added CMake option JAVA_HOME to explicitly specify java installation
  • added centralised ant solution

CX2T

  • moved config files inside jar
  • removed static non-final variables
  • refactored CLI
  • fixed various issues

Driver

  • Removed bash-based driver
  • Added new java-based driver
  • Added tests and unit-tests coverage for the driver
  • Added CLI options '-MD' and '-mj' for better integration with GNU Make-based builds

Development

  • added Eclipse IDE projects generation from templates
  • ported all tests to JUnit

OMNI compiler

  • submodule now pointing to omni-compiler/xcodeml-tools@0276bc017876cd8e02a4d54b36c3fe6d4d11c78a
  • Switched to CMake based build
  • Switched to C++ version of frontend (i.e. ffront-cpp instead of F_Front)
  • Added CMake option BUILD_OMNI_XCODEML_TOOLS to use pre-installed OMNI (when set to OFF)
  • Added CMake option OMNI_LINK_STATIC_GNU_LIBSTDCXX to build OMNI with static libstdc++ library
  • Added CLI option --ffront-debug-dir to the CLAW driver for replicating failed calls to OMNI

Other

  • updated install and developer documentation
  • updated sonar to new version
  • updated coding style

[2.0.2] - 2020-07-27

  • OMNI Compiler submodule now pointing to omni-compiler/xcodeml-tools@3bbc8ec4caa31113a7f67ae7371e678c28d613fc
  • Added support for NAG compiler
  • Various bug fixes

[2.0.1] - 2019-09-18

  • Serialization is now disabled by default.
  • Driver: Add option sca_forward_update_disabled to switch globally updates.
  • Driver: Add option sca_forward_update_direction to fine tuned updates.
  • Driver: Add option sca_serialization_enabled_direction to fine tuned serialization.
  • SCA: fix inserted module use in automatic serialization when serialization is disabled.

[2.0] - 2019-08-23

  • array-transform directive as been renamed expand as specified in v2.0 of the CLAW Directive Language Specification.
  • parallel clause for expand directive is implemented.
  • update clause for expand directive is implemented.
  • beta serialization support for expand and sca elemental directives.
  • SCA: support for transformation in ELEMENTAL function/subroutine for GPU target
  • low-level: block directive like loop-hoist can now be nested on the same depth.
  • driver: _CRAYFTN macro is passed directly when Cray preprocessor is used.
  • OMNI Compiler submodule now pointing to omni-compiler/xcodeml-tools@772cf79077ac5f04cfc204fc7e0b53755a362d8b
  • Java 1.8 or newer is now required for CX2T.

[1.2.3] - 2019-04-10

  • driver: fix preprocessor filename for Cray in dependency resolver

[1.2.2] - 2019-03-29

  • driver: fix temporary file name being too long in some cases.

[1.2.1] - 2018-11-16

  • driver: new option --add-paren to force parenthesis on mathematical binary operation in code generation.
  • driver: fix automatic dependency resolver arguments passing (#478)

[1.2.0] - 2018-11-13

  • SCA: Support model configuration file with the --model-config=<path> option.
  • SCA: parallelize can still be used but it is deprecated. Use the new !$claw sca directive construct.
  • SCA: in directive dimension definition is still supported as a local model configuration per pragma.
  • SCA: Support model-data directive.
  • Various bug fixes.
  • OMNI Compiler submodule now pointing to omni-compiler/xcodeml-tools@4f66174b739fa59d15631a9b55457f809ae70d1f
  • Current version of OMNI Compiler can fully parse/validate COSMO CPU/GPU.

[1.1.0] - 2018-09-24

  • SCA: Initial support of OpenMP 4.5 code generation for accelerator.
  • SCA: Smart fusion option as CPU transformation strategy. Tries to group adjacent statements together.
  • loop-hoist: new clause cleanup to remove previously defined directive.
  • Compiler options: -x=<key:value> can be used to override configuration parameters.
  • Configuration file version is checked on the major version number.
  • OMNI Compiler submodule now pointing to omni-compiler/xcodeml-tools@95e1bf985330ef14cdd0b1afef9c97999e6b6404

[1.0.2] - 2018-08-21

  • User comment line can be preserved with the --keep-comment option.
  • SCA: Fix duplicated array references inserted in some cases.
  • OMNI Compiler to git hash omni-compiler/xcodml-tools@2b72cd9fc9c6133bf9f806d3b7fc5a369265d605
  • OMNI Compiler submodule now pointing to XcodeML-tools omni-compiler/xcodeml-tools
  • Various bug fixes

[1.0.1] - 2018-04-17

  • Support of Intel Compiler preprocessing workflow.
  • Clean up properly temporary files when driver exits.
  • SCA/CPU: Fix problem with indirect promotion (missing do stmt).
  • Move test from abstraction to sca folder.
  • OMNI Compiler to git hash omni-compiler/omni-compiler@f59978d90cc1d93cf16de125e8dd35ae1d2a6537

[1.0.0] - 2018-03-19

New features:

  • Option --target=<target> or -t=<target> allows to choose the target for code transformation.
  • Option --directive=<directive_language> or -d=<directive_language> allows to choose the accelerator directive language used for code generation.
  • Transformation order is now configurable with the option --config=. A default configuration file is available in <INSTALL_DIR>/etc/claw-default.xml.
  • New configuration files with user extension.
  • OpenACC local arrays strategy private or promote available from configuration.

New available transformations:

  • Low-level:
    • array-transform
    • kcache
    • call
    • loop-hoist
    • if-extract
    • verbatim
    • ignore
  • High abstraction (beta):
    • Single Column Abstraction
      • parallelize
      • parallelize forward

Modification:

  • collapse clause can be applied to loop-fusion transformation.
  • Group configuration must now specify trigger type (translation_unit, directive)

Technical/Architecture change:

  • All Java libraries now compiled with Ant.
  • Execution of JUnit test cases is driven by Ant.
  • Program arguments of claw.ClawX2T is now using Common CLI.
  • Preprocessor specific configurations are now stored in compiler/<compiler_id>.cmake files.
  • Some transformations are implemented directly into the driver as they have to be performed before the parsing step.
  • The full workflow is now pipelined. Only in debug mode, intermediate files are written to disk.
  • CLAW X2T libraries are split in 3 distinct ones. For more information, refer to the developer's guide.

General:

  • OMNI Compiler submodule points to the official OMNI Compiler repository. The state of the repository is updated only when the latest changes are tested and validated.

[0.1.0] - 2016-02-05

First release

  • CX2X XcodeML library: An abstraction of a set of the XcodeML/F intermediate representation that let the elements easily manipulable from Java code.
  • CX2X CLAW translator: An XcodeML to XcodeML translator that implements the CLAW language directive v0.1 (loop-fusion, loop-interchange, loop-extract, remove)
  • CLAW Compiler driver: the compiler driver that glue together all pieces together for the full workflow.