1. 01 Feb, 2018 2 commits
    • Swann Perarnau's avatar
      [fix] Make jemalloc link properly with aml · f8e57eeb
      Swann Perarnau authored
      Using both --with-jemalloc-prefix=jemk_ and --with-install-suffix=-aml
      ensures that the libjemalloc we build for our internal use has unique
      functions names and library names.
      
      This patch fixes a problem with the libtool configuration, where we had
      to link a static jemalloc library into the shared aml library to make
      everything work. Instead, we can now use the proper LIBADD variables
      with the unique library.
      
      Note that with this patch the `make check` target requires a `make
      install` beforehand.
      f8e57eeb
    • Swann Perarnau's avatar
      [refactor] new version of the API · a002945c
      Swann Perarnau authored
      This is the result of countless interations on the internal design of
      the various building blocks we want to have for this library.
      
      At this point, I hope that this is stable enough. There are still some
      tweaks needed here and there, but the core is implemented AND tested.
      
      Some of the design decisions made:
      - all functions are public, but most are not meant to be used directly.
      - intended public functions take "generic" structs as arguments
      - intended actual implementations rely on more complex structures, with
      their own family of data and operators.
      - split all objects between data and operator structs.
      
      Exemple:
      - area.c and arena.c are generic dispatch functions to call the actual,
        specific implementations.
      - struct aml_area and struct_aml_arena are the same.
      
      Currently implement:
      - 2 area types: posix (malloc) and linux (numa).
      - 1 arena type: jemalloc
      a002945c
  2. 25 Oct, 2017 1 commit
  3. 06 Oct, 2017 1 commit
    • Swann Perarnau's avatar
      [refactor] Implement new API, based on jemalloc · 66564c2f
      Swann Perarnau authored
      This is a redesign of the library, as a hierarchy of core objects
      implementing its various features. The idea is to create an API that is
      as flexible and customizable as possible, by exposing as much as
      possible of its internals, so that users can create customs versions
      easily.
      
      We also move away from memkind as a possible backend, opting instead to
      vendor the jemalloc interface and implement everything ourselves on top
      of that.
      
      We expect to start building the low-level pieces using hwloc as a
      backend soon, at least in terms of accessing available devices.
      66564c2f
  4. 23 Aug, 2017 2 commits
  5. 22 Aug, 2017 1 commit
    • Swann Perarnau's avatar
      [refactor] Rework code for better abstractions · a41b0412
      Swann Perarnau authored
      This is a rewrite of the existing code into a memory library exposing
      more of its internal abstractions. This refactoring is required to:
      - make progress faster by focusing on the core new features
      - abstract more of the underlying components and expose those
      abstractions
      - build upon existing libraries (memkind) for the internal stuff.
      
      Memkind is used as a crutch here, we do not intend to use it in the long
      term, as some of its internal are opposed to what we want (topology
      management in particular).
      
      Nevertheless, it currently provides a good allocator internally, and
      decent access to deep memory, for now.
      
      Over time, we figured out that the best way to build this API was to
      create several layers of APIs, each with more abstractions over the
      devices. At the same time, we want each layer to expose its internal
      mechanisms, so that a user can customize any of them.
      
      This is why we end up with areas and dma engines, and we will add in the
      future other stuff, like data decomposition and distribution methods, as
      well as direct support for "pipelining".
      a41b0412
  6. 21 Aug, 2017 1 commit
  7. 16 Aug, 2017 1 commit
  8. 27 Feb, 2017 1 commit
    • Swann Perarnau's avatar
      Implement non-transparent memory interface · 27252580
      Swann Perarnau authored
      This is a mmap-based, non-transparent version of the library, with a
      unit test checking that we can call move_pages properly from it.
      
      No node tracking performed. Memcpy not working.
      27252580
  9. 21 Feb, 2017 1 commit
  10. 30 Jun, 2016 1 commit
    • Swann Perarnau's avatar
      Add first working version: limit numa allocs · 80669c37
      Swann Perarnau authored
      This is the first working version of the library. It does very little:
      - only numa support
      - one allocation per node only
      - limited tests
      - limited set of functions
      
      Nevertheless, this gives a good idea of what the API should look like, and the
      kind of benchmarks we can write with it.
      80669c37
  11. 23 Jun, 2016 1 commit