Explore jit assembly

build.sbt

@@ -223,6 +223,25 @@ lazy val time = project
  )
  .dependsOn(coreJVM)
 
+lazy val exploremain = project
+ .in(file("exploremain"))
+ .settings(
+ name := "saddle-explore",
+ publish / skip := true,
+ publishArtifact := false,
+ fork := true,
+ scalaVersion := scalaVersionInBuild,
+ Global / cancelable := true,
+ run / javaOptions ++= Seq(
+ "-XX:+UnlockDiagnosticVMOptions",
+ // in addition of these one needs a shared library - hsdis - from the jdk
+ // https://blogs.oracle.com/javamagazine/post/java-hotspot-hsdis-disassembler
+ "-XX:CompileCommand=print,org/saddle/macros/BinOpVecVecInPlace$$anon$1.apply",
+ "-XX:CompileCommand=print,org/saddle/ops/BinOpVecInPlace$VecVecElemOpIp$mcDD$sp.apply$mcDD$sp",
+ "-XX:-UseCompressedOops")
+ )
+ .dependsOn(coreJVM, linalg, inlinedOps)
+
 lazy val stats = project
  .in(file("saddle-stats"))
  .settings(commonSettings: _*)

exploremain/src/main/scala/main.scala

@@ -0,0 +1,12 @@
+import org.saddle._
+import org.saddle.order._
+import org.saddle.macros.BinOps._
+// import org.saddle.ops.BinOps._
+
+object M extends App {
+ 0 until 100000 foreach { _ =>
+ val v1 = vec.zeros(100000)
+ val v2 = vec.ones(100000)
+ v1 += v2
+ }
+}

saddle-linalg/src/main/scala/saddle/linalg/VecLinalgOps.scala

@@ -39,21 +39,12 @@ class VecPimp(val self: Vec[Double]) {
  var s = 0d
  val M = self.length
 
- val m = M % 5
- while (i < m) {
- s += self.raw(i) * other.raw(i)
- i += 1
- }
+ val ar1 = self.toArray
+ val ar2 = other.toArray
 
  while (i < M) {
- val v1 = self.raw(i) * other.raw(i)
- val v2 = self.raw(i + 1) * other.raw(i + 1)
- val v3 = self.raw(i + 2) * other.raw(i + 2)
- val v4 = self.raw(i + 3) * other.raw(i + 3)
- val v5 = self.raw(i + 4) * other.raw(i + 4)
-
- s += v1 + v2 + v3 + v4 + v5
- i += 5
+ s += ar1(i) * ar2(i)
+ i += 1
  }
  s
  }