github diku-dk/futhark v0.18.2
0.18.2

latest releases: nightly, v0.25.15, v0.25.14...
3 years ago

Added

  • The GPU loop tiler can now handle loops where only a subset of the
    input arrays are tiled. Matrix-vector multiplication is one
    important program where this helps (#1145).

  • The number of threads used by the multicore backend is now
    configurable (--num-threads and
    futhark_context_config_set_num_threads()). (#1162)

Fixed

  • PyOpenCL backend would mistakenly still streat entry point
    argument sizes as 32 bit.

  • Warnings are now reported even for programs with type errors.

  • Multicore backend now works properly for very large iteration
    spaces.

  • A few internal generated functions (init_constants(),
    free_constants()) were mistakenly declared non-static.

  • Process exit code is now nonzero when compiler bugs and
    limitations are encountered.

  • Multicore backend crashed on reduce_by_index with nonempty target
    and empty input.

  • Fixed a flattening issue for certain complex map nestings
    (#1168).

  • Made API function futhark_context_clear_caches() thread safe
    (#1169).

  • API functions for freeing opaque objects are now thread-safe
    (#1169).

  • Tools such as futhark dataset no longer crash with an internal
    error if writing to a broken pipe (but they will return a nonzero
    exit code).

  • Defunctionalisation had a name shadowing issue that would crop up
    for programs making very advanced use of functional
    representations (#1174).

  • Type checker erroneously permitted pattern-matching on string
    literals (this would fail later in the compiler).

  • New coverage checker for pattern matching, which is more correct.
    However, it may not provide quite as nice counter-examples
    (#1134).

  • Fix rare internalisation error (#1177).

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