Move LPOptimizer, DSL and tests to lp_optimizer/

2024-06-05 10:51:20 +03:00
parent 86832dc43f
commit 848c2d2722
13 changed files with 10 additions and 10 deletions
@@ -0,0 +1,34 @@
+// Copyright (c) Vitaliy Filippov, 2019+
+// License: VNPL-1.1 (see README.md for details)
+
+const { compat } = require('./simple_pgs.js');
+const LPOptimizer = require('./lp_optimizer.js');
+
+const osd_tree = {
+    100: {
+        1: 0.1,
+        2: 0.1,
+        3: 0.1,
+    },
+    200: {
+        4: 0.1,
+        5: 0.1,
+        6: 0.1,
+    },
+};
+
+async function run()
+{
+    let res;
+    console.log('256 PGs, 3+3 OSDs, size=2');
+    res = await LPOptimizer.optimize_initial(compat({ osd_tree, pg_size: 2, pg_count: 256 }));
+    LPOptimizer.print_change_stats(res, false);
+
+    // Should NOT fail with the "unfeasible or unbounded" exception
+    console.log('\nRemoving osd.2');
+    delete osd_tree[100][2];
+    res = await LPOptimizer.optimize_change(compat({ prev_pgs: res.int_pgs, osd_tree, pg_size: 2 }));
+    LPOptimizer.print_change_stats(res, false);
+}
+
+run().catch(console.error);