landing: v0.9.0 (s390x measured on a z17)

.github/workflows/hugo.yml

@@ -60,7 +60,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v7
         with:
-          go-version: "1.27.1"
+          go-version: "1.27.2"
           cache-dependency-path: playground/go.sum
 
       - name: Build the playground

.github/workflows/playground.yml

@@ -39,7 +39,7 @@ jobs:
       - uses: actions/checkout@v7
       - uses: actions/setup-go@v7
         with:
-          go-version: "1.27.1"
+          go-version: "1.27.2"
           cache-dependency-path: playground/go.sum
       - uses: actions/setup-node@v7
         with:
@@ -74,7 +74,7 @@ jobs:
       - uses: actions/checkout@v7
       - uses: actions/setup-go@v7
         with:
-          go-version: "1.27.1"
+          go-version: "1.27.2"
           cache-dependency-path: playground/go.sum
       - name: install the guards
         run: |
@@ -99,7 +99,7 @@ jobs:
       - uses: actions/checkout@v7
       - uses: actions/setup-go@v7
         with:
-          go-version: "1.27.1"
+          go-version: "1.27.2"
           cache-dependency-path: playground/go.sum
       - uses: actions/setup-node@v7
         with:

hugo.toml

@@ -16,9 +16,9 @@ disableKinds = ['taxonomy', 'term', 'rss', 'sitemap', '404']
 
 [[params.repos]]
   name  = "ndarray"
-  kind  = "library · v0.8.0"
+  kind  = "library · v0.9.0"
   href  = "https://github.com/go-ndarray/ndarray"
-  blurb = "The library. Creation (<code>Zeros</code>/<code>Arange</code>/<code>Linspace</code>/…), strided <strong>views</strong>, broadcasting elementwise + ufuncs, reductions (<code>Sum</code>/<code>Max</code>/<code>ArgMax</code>/<code>CumSum</code>/<code>Clip</code>/<code>Where</code>), manipulation (<code>Reshape</code>/<code>Concatenate</code>/<code>Stack</code>), linalg (<code>MatMul</code>/<code>Dot</code>) via a panel-packed cache-blocked GEMM with a go-asmgen SIMD-FMA micro-kernel (NEON 4&times;8 on arm64, AVX2/FMA 6&times;8 on amd64, VSX 8&times;8 on ppc64le, LASX 8&times;8 on loong64, RVV 6&times;8 on riscv64), and a <code>Workspace</code> arena for loops (<code>Use</code>/<code>Reset</code>/<code>Detach</code>)."
+  blurb = "The library. Creation (<code>Zeros</code>/<code>Arange</code>/<code>Linspace</code>/…), strided <strong>views</strong>, broadcasting elementwise + ufuncs, reductions (<code>Sum</code>/<code>Max</code>/<code>ArgMax</code>/<code>CumSum</code>/<code>Clip</code>/<code>Where</code>), manipulation (<code>Reshape</code>/<code>Concatenate</code>/<code>Stack</code>), linalg (<code>MatMul</code>/<code>Dot</code>) via a panel-packed cache-blocked GEMM with a go-asmgen SIMD-FMA micro-kernel (NEON 4&times;8 on arm64, AVX2/FMA 6&times;8 on amd64, VSX 8&times;8 on ppc64le, LASX 8&times;8 on loong64, RVV 6&times;8 on riscv64, 4&times;8 on s390x), and a <code>Workspace</code> arena for loops (<code>Use</code>/<code>Reset</code>/<code>Detach</code>)."
 [[params.repos]]
   name  = "docs"
   kind  = "site"

layouts/index.html

@@ -85,7 +85,7 @@ <h2>The n-dimensional array, <i>without</i> cgo.</h2>
       <div class="card"><div class="ico">✅</div><h3>100% test coverage</h3><p>Gated in CI, differentially checked against <code>numpy</code>.</p></div>
       <div class="card"><div class="ico">🔢</div><h3>NumPy semantics</h3><p>Row-major strided arrays, <b>NumPy broadcasting</b>, and NumPy basic-indexing <code>Slice</code> returning strided views that share data.</p></div>
       <div class="card"><div class="ico">♻️</div><h3><code>Workspace</code> arena for loops</h3><p>Bind the inputs with <code>ws.Use</code>, compute as usual, <code>ws.Reset()</code> at the end of each pass: results stop costing the garbage collector anything. On a Zen 3, <code>x + y</code> on 1&nbsp;024 elements drops from 2.6 to 0.38&nbsp;µs (2.1× NumPy).</p></div>
-      <div class="card"><div class="ico">⚡</div><h3>SIMD on every 64-bit target</h3><p>go-asmgen SIMD kernels on amd64 (SSE2, AVX2/FMA picked at run time), arm64 (NEON), ppc64le (VSX), loong64 (LASX, when the CPU has it), riscv64 (RVV, when the CPU has it) and s390x (vector facility, validated under emulation only); the 32-bit targets run the same pure-Go code those kernels are tested against.</p></div>
+      <div class="card"><div class="ico">⚡</div><h3>SIMD on every 64-bit target</h3><p>go-asmgen SIMD kernels on amd64 (SSE2, AVX2/FMA picked at run time), arm64 (NEON), ppc64le (VSX), loong64 (LASX, when the CPU has it), riscv64 (RVV, when the CPU has it) and s390x (vector facility, measured on a real IBM z17); the 32-bit targets run the same pure-Go code those kernels are tested against.</p></div>
       <div class="card"><div class="ico">🎯</div><h3>Accurate <code>Exp</code>/<code>Log</code></h3><p>Ports of Arm's optimized-routines: worst 0.504 / 0.508 ULP against a 300-bit reference, and correct where Go's amd64 <code>math.Exp</code> returns +Inf (<a href="https://github.com/golang/go/issues/81995"><u>golang/go#81995</u></a>) and <code>math.Log</code> is wrong on subnormals (<a href="https://github.com/golang/go/issues/56600"><u>golang/go#56600</u></a>).</p></div>
       <div class="card"><div class="ico">🧪</div><h3>Multi-arch CI</h3><p>The suite runs on amd64, arm64 and 386 natively and on riscv64/loong64/ppc64le/s390x/arm under qemu, on Linux, macOS and Windows, and compiles for every <code>GOOS/GOARCH</code> pair Go supports; v0.2.0 was also run on real amd64, arm64, ppc64le, riscv64 and loong64 hardware.</p></div>
       <div class="card"><div class="ico">💎</div><h3>The cgo-free ndarray that was missing</h3><p>Ruby has no cgo-free ndarray (<code>Numo::NArray</code> and <code>NMatrix</code> are C extensions) and <code>gonum</code>'s optimized assembly is amd64-only. go-ndarray pairs a portable pure-Go core with multicore fan-out and SIMD kernels.</p></div>

playground/go.mod

@@ -1,9 +1,9 @@
 module github.com/go-ndarray/go-ndarray.github.io/playground
 
-go 1.27.1
+go 1.27.2
 
 require (
-	github.com/go-ndarray/ndarray v0.8.0
+	github.com/go-ndarray/ndarray v0.9.0
 	github.com/go-widgets/mvvm v0.13.0
 	github.com/go-widgets/mvvmtk v0.14.1
 	github.com/go-widgets/painter v0.15.0

playground/go.sum

@@ -22,8 +22,8 @@ github.com/go-images/jpeg2000 v0.1.0 h1:SiFAZ6NGvGLU+VmxKji74RiSQDeK6TyjUZr1wjlx
 github.com/go-images/jpeg2000 v0.1.0/go.mod h1:MwSmrbiP6RK7eLphoNyzY60BAXWOD+8LVdBYDPIBrN4=
 github.com/go-images/png v0.1.0 h1:OI4yHotS0lA75sLnG2FTL2Vooh4PWpVWEidre1msSe0=
 github.com/go-images/png v0.1.0/go.mod h1:V9vaEbr2nrZGorUWn4xv9F24Yuu1/qLVtmailM9GBVo=
-github.com/go-ndarray/ndarray v0.8.0 h1:wdEWnMD2jxGI5BSwRtV2vdU7XoyOTvXsrSDu5w8uC5A=
-github.com/go-ndarray/ndarray v0.8.0/go.mod h1:MI/3teJK5hMJ4Chz6Auy2w+DnQAjtbekhHRg+NUbNMI=
+github.com/go-ndarray/ndarray v0.9.0 h1:j4pvNri/0CzuICwU6iCCKkwobbNkNozNZ3WRgX0SSuQ=
+github.com/go-ndarray/ndarray v0.9.0/go.mod h1:URXtNNKKw05MdWCqSCOmiw4zE38HQl95PztFSwgeVdk=
 github.com/go-opentype/fonts v0.10.0 h1:9f7ik795SlBEJjz6iqBE/ZV2PaTauAj537MMWw9t4OQ=
 github.com/go-opentype/fonts v0.10.0/go.mod h1:b+o8v1zDZ6B3GixA398jGILAh09+WwfyoYz52zKe7DA=
 github.com/go-opentype/opentype v0.13.0 h1:q9K7IGDfwMP/ik51ZkwiYf6jbaqPfocvAIuojetd0UQ=