replaced with fresh examples

examples/mandelbrot_tasks3d/mandelbrot_launch.ispc

@@ -0,0 +1,22 @@
+extern task void
+mandelbrot_scanline(
+    uniform float x0, uniform float dx, 
+    uniform float y0, uniform float dy,
+    uniform int width, uniform int height, 
+    uniform int xspan, uniform int yspan,
+    uniform int maxIterations, uniform int output[]);
+
+export void
+mandelbrot_ispc(uniform float x0, uniform float y0, 
+                uniform float x1, uniform float y1,
+                uniform int width, uniform int height, 
+                uniform int maxIterations, uniform int output[]) {
+    uniform float dx = (x1 - x0) / width;
+    uniform float dy = (y1 - y0) / height;
+    const uniform int xspan = 16;  /* make sure it is big enough to avoid false-sharing */
+    const uniform int yspan = 16; 
+
+    launch [width/xspan, height/yspan]
+      mandelbrot_scanline(x0, dx, y0, dy, width, height, xspan, yspan,
+                          maxIterations, output);
+}