Futhark 0.2.0 发布，小型全新的函数式编程语言

内容简介：Futhark 0.2.0 已发布，与第一个版本相比，该版本没有添加主要的编译器优化特性，相反，该版本专注于各种提升使用体验的改进，具体更新如下： Added Run-time errors due to failed assertions now include a sta...

Futhark 0.2.0 已发布，与第一个版本相比，该版本没有添加主要的编译器优化特性，相反，该版本专注于各种提升使用体验的改进，具体更新如下：

Added

• Run-time errors due to failed assertions now include a stack
  trace.

• Generated OpenCL code now picks more sensible group size and count
  when running on a CPU.

• scatter expressions nested in maps may now be parallelised
  ("segmented scatter").

• Add num_bits/get_bit/set_bit functions to numeric module
  types, including a new float module type.

• Size annotations may now refer to preceding parameters, e.g:

  let f (n: i32) (xs: [n]i32) = ...

• futhark-doc: retain parameter names in generated docs.

• futhark-doc: now takes -v/--verbose options.

• futhark-doc: now generates valid HTML.

• futhark-doc: now permits files to contain a leading documentation
  comment.

• futhark-py/futhark-pyopencl: Better dynamic type checking in
  entry points.

• Primitive functions (sqrt etc) can now be constant-folded.

• Futlib: /futlib/vec2 added.

Removed

• The built-in shape function has been removed. Use length or
  size parameters.

Changed

• The from_i32/from_i64 functions of the numeric module type
  have been replaced with functions named i32/i64. Similarly
  functions have been added for all the other primitive types
  (factored into a new from_prim module type).

• The overloaded type conversion functions (i32, f32, bool,
  etc) have been removed. Four functions have been introduced for
  the special cases of converting between f32/f64 and i32:
  r32, r64, t32, t64.

• Modules and variables now inhabit the same name space. As a
  consequence, we now use x.y to access field y of record x.

• Record expression syntax has been simplified. Record
  concatenation and update is no longer directly supported.
  However, fields can now be implicitly defined: {x,y} now creates
  a record with field x and y, with values taken from the
  variables x and y in scope.

Fixed

• The != operator now works properly on arrays (#426).

• Allocations were sometimes hoisted incorrectly (#419).

• f32.e is no longer pi.

• Various other fixes.

发布主页和完整更新日志。

Futhark 是一个小型全新的函数式编程语言，可编译为高性能的 GPU 代码。使用静态类型、并行数据以及纯函数数组语言。该语言对编译器提前进行重度的优化，通过 OpenCL 生成 GPU 代码。Futhark 并非为图形编程而设计，通过使用 GPU 来加速并行的数组计算，支持常规嵌套的数据并行化处理。

Futhark 使用 Haskell 语言开发。

下载地址：

• futhark-0.2.0-linux-x86_64.tar.xz

• Source code (zip)

• Source code (tar.gz)

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