upd docs

docs/cover.js

@@ -0,0 +1,88 @@
+document.addEventListener("DOMContentLoaded", (event) => {
+
+  const sketch = (p) => {
+    const s = 0.6;
+    const w = 1280 * s, h = 384 * s;
+    const cell = 15 * s;
+    var text_bg;
+    const noise_scale = 0.3;
+    const noise_variability = 0.2;
+    const Period = 100;
+    let DARK;
+
+    var matrix = [[0.36, 0.48, -0.8], [-0.8, 0.6, 0], [0.48, 0.64, 0.6]]
+
+    p.preload = function () {
+      text_bg = p.createGraphics(w, h);
+      text_bg.noStroke();
+      text_bg.fill(255, 0, 0);
+      text_bg.textFont('monospace');
+      text_bg.textSize(280 * s);
+      text_bg.textAlign(p.CENTER, p.CENTER);
+      text_bg.text("entity", w / 2, h / 2);
+    }
+
+    const get_theme = () => {
+      let color = document.body.getAttribute("data-md-color-media");
+      if (color === "(prefers-color-scheme: dark)") {
+        DARK = true;
+      } else {
+        DARK = false;
+      }
+    }
+
+    const make = () => {
+      let f = 0.1;
+      for (let i = 0; i < (w / cell); ++i) {
+        for (let j = 0; j < (h / cell); ++j) {
+          let t = (p.frameCount) / Period;
+          let triangle = 2 * Period * 0.8 * Math.abs(t - Math.floor(t + 0.5));
+          let k = noise_variability * triangle;
+          let x = i * matrix[0][0] + j * matrix[0][1] + k * matrix[0][2];
+          let y = i * matrix[1][0] + j * matrix[1][1] + k * matrix[1][2];
+          let z = i * matrix[2][0] + j * matrix[2][1] + k * matrix[2][2];
+          let c = p.noise(x * noise_scale, y * noise_scale, z * noise_scale) * 200;
+          let a = text_bg.get(i * cell, j * cell)[0] / 30;
+          let fl = c * (a * f + (1.0 - f)) / 2;
+          if (fl < 70) fl /= 10.0;
+          "2e303e"
+
+          if (DARK) {
+            p.fill(46 + 2 * (46 / 62) * fl, 48 + 2 * (48 / 62) * fl, 62 + 2 * fl);
+          } else {
+            p.fill(255 - 2 * (62 / 46) * fl, 255 - 2 * (62 / 48) * fl, 255 - 2 * fl);
+          }
+          p.rect(i * cell, j * cell, cell * 0.9, cell * 0.9);
+        }
+      }
+    }
+
+    p.setup = function () {
+      get_theme();
+      p.frameRate(10);
+      let cnv = p.createCanvas(w, h);
+      cnv.parent('cover');
+      if (DARK) {
+        p.background(0)
+        p.stroke(46, 47, 62);
+      } else {
+        p.background(255);
+        p.stroke(255);
+      }
+      p.strokeWeight(0.25);
+      p.noiseSeed(99);
+    }
+
+    p.draw = function () {
+      get_theme();
+      if (DARK) {
+        p.stroke(46, 47, 62);
+      } else {
+        p.stroke(255);
+      }
+      make();
+    }
+  }
+
+  const myp5 = new p5(sketch);
+}, false);

docs/getting-started/compile-run.md

@@ -32,6 +32,7 @@ First, make sure you have all [the necessary dependencies](dependencies.md) inst
     | `pgen` | problem generator | see `<engine>/pgen/` directory | `dummy` |
     | `precision` | floating point precision | `single`, `double` | `single` |
     | `output` | enable output | `ON`, `OFF` | `OFF` |
+    | `mpi` | enable multi-node support | `ON`, `OFF` | `OFF` |
     | `DEBUG` | enable debug mode | `ON`, `OFF` | `OFF` |
     | `TESTS` | compile the unit tests | `ON`, `OFF` | `OFF` |
 
@@ -129,10 +130,4 @@ You may also specify the `--output-on-failure` flag to see the output of the tes
 To run only specific tests, you can use the `-R` flag followed by the regular expression that matches the test name. For example, to run all the tests that contain the word `particle`, you can use:
 ```shell
 ctest --test-dir build/ -R particle
-```
-
-## Docker 
-
-!!! warning
-
-    While the Docker environment for the code is available (see `docker` directory in the root of the repository), it is not documented yet.
+```