A collection of packages to provide BLAS functionality for the Go programming language

  go get github.com/gonum/blas

If you want to use OpenBLAS, install it in any directory:

  git clone https://github.com/xianyi/OpenBLAS
  cd OpenBLAS
  make

The blas/cgo package provides bindings to C-backed BLAS packages. blas/cgo needs the CGO_LDFLAGS environment variable to point to the blas installation. More information can be found in the cgo command documentation.

Then install the blas/cgo package:

  CGO_LDFLAGS="-L/path/to/OpenBLAS -lopenblas" go install github.com/gonum/blas/cgo

For Windows you can download binary packages for OpenBLAS at SourceForge.

If you want to use a different BLAS package such as the Intel MKL you can adjust the CGO_LDFLAGS variable:

  CGO_LDFLAGS="-lmkl_rt" go install github.com/gonum/blas/cgo

On OS X the easiest solution is to use the libraries provided by the system:

  CGO_LDFLAGS="-framework Accelerate" go install github.com/gonum/blas/cgo

Defines BLAS API split in several interfaces.

Go implementation of the BLAS API (incomplete, implements the float32 and float64 API)

Binding to a C implementation of the cblas interface (e.g. ATLAS, OpenBLAS, Intel MKL)

The recommended (free) option for good performance on both Linux and Darwin is OpenBLAS.

Wrappers for an implementation of the double (i.e., float64) and single (float32) precision real parts of the blas API

package main

import (
	"fmt"

	"github.com/gonum/blas/blas64"
)

func main() {
	v := blas64.Vector{Inc: 1, Data: []float64{1, 1, 1}}
	fmt.Println("v has length:", blas64.Nrm2(len(v.Data), v))
}

Wrappers for an implementation of the double (i.e., complex128) and single (complex64) precision complex parts of the blas API

Currently blas/cblas64 and blas/cblas128 require blas/cgo.

If you find any bugs, feel free to file an issue on the github issue tracker. Discussions on API changes, added features, code review, or similar requests are preferred on the gonum-dev Google Group.

Please see github.com/gonum/license for general license information, contributors, authors, etc on the Gonum suite of packages.