chore: fix randommatrix util

Author: jobo322

benchmark/combinationOfCardinalityAndSize.js

@@ -1,4 +1,4 @@
-import { run, bench, group, do_not_optimize } from 'mitata';
+import { run, bench, do_not_optimize, lineplot } from 'mitata';
 import { xSequentialFillFromStep } from 'ml-spectra-processing';
 
 import { SparseMatrix } from '../src/index.js';
@@ -13,15 +13,15 @@ camelcase: 0
 */
 // Prepare matrices once
 const cardinalities = Array.from(
-  xSequentialFillFromStep({ from: 10, step: 5, size: 25 }),
+  xSequentialFillFromStep({ from: 10, step: 5, size: 2 }),
 );
 
 // const dimensions = Array.from(
 //   xSequentialFillFromStep({ from: 700, step: 100, size: 13 }),
 // );
 
 const dimensions = [512];
-group('comparation internal method', () => {
+lineplot(() => {
   bench('hibrid($cardinality,$dimension)', function* (ctx) {
     const cardinality = ctx.get('cardinality');
     const size = ctx.get('dimension');
@@ -104,12 +104,12 @@ const results = await run({
   // warmup_samples: 10,
   // warmup_threshold: 100, // ms
   // Longer minimum time for stable measurements
-  min_cpu_time: 2000, // 2 seconds minimum
-  // Batch settings to reduce variance
-  batch_samples: 5,
-  batch_threshold: 10, // ms
-  // Enable colors
-  colors: true,
+  // min_cpu_time: 2000, // 2 seconds minimum
+  // // Batch settings to reduce variance
+  // batch_samples: 5,
+  // batch_threshold: 10, // ms
+  // // Enable colors
+  // colors: true,
 });
 
 // Process and store results

benchmark/utils/randomMatrix.js

@@ -1,6 +1,5 @@
-export function randomMatrix(rows, cols, density = 0.01) {
+export function randomMatrix(rows, cols, cardinality) {
   const total = rows * cols;
-  const cardinality = Math.ceil(total * density);
   const positions = new Set();
 
   // Generate unique random positions

src/index.js

@@ -165,7 +165,7 @@ export class SparseMatrix {
 
     if (this.cardinality < 42 && other.cardinality < 42) {
       return this._mmulSmall(other);
-    } else if (other.rows > 100 && other.cardinality < 110) {
+    } else if (other.rows > 100 && other.cardinality < 100) {
       return this._mmulLowDensity(other);
     }