anchor.diff:          kse    
       )
   
  -
  -[<Fact>]
  +[<Fact>]
  +[<Trait("Category", "Skip_CI")>]
   let ``Trace compare: dKSE/dX`` () =    
       let nGps = 2
       let nSmpls = 3
  
positive.code:     printfn "dkse / dl=\n%A" dKsedLVal
  
  [<Fact>]
  let ``Eval and deriv: KSE in Expr on CUDA`` () =   
      // input  x[gp, smpl]
      //        l[gp]
  
negative.code:     )
  
  [<Fact>]
  [<Trait("Category", "Skip_CI")>]
  let ``Trace compare: dKSE/dL`` () =    
      let nGps = 2
      let nSmpls = 3
  