whirgod commented on a change in pull request #1275:
URL: https://github.com/apache/systemds/pull/1275#discussion_r633107021
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File path: src/test/java/org/apache/sysds/test/TestUtils.java
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@@ -3073,4 +3059,46 @@ public static int isGPUAvailable() {
final int[] deviceCount = new int[1];
return JCuda.cudaGetDeviceCount(deviceCount);
}
+
+ public static double[][] convertMatrix(HashMap<MatrixValue.CellIndex,
Double> m, int rows, int cols) {
+ double[][] res = new double[rows][cols];
+ m.forEach((k, v) -> res[k.row - 1][k.column - 1] = v);
+ return res;
+ }
+
+ public static HashMap<MatrixValue.CellIndex, Double>
convertMatrix(double[][] m) {
+ HashMap<MatrixValue.CellIndex, Double> res = new
HashMap<MatrixValue.CellIndex, Double>();
+ for (int r = 0; r < m.length; ++r) {
+ double[] row = m[r];
+ for (int c = 0; c < row.length; ++c) {
+ res.put(new CellIndex(r + 1, c + 1), row[c]);
+ }
+ }
+
+ return res;
+ }
+
+ /**
+ * Reads a matrix from a text file. Rows are separated by newline,
Values are separated by space.
+ * Take from
https://www.tutorialspoint.com/How-to-read-a-2d-array-from-a-file-in-java
+ * @param url URL to the resource file obtained by Class.getResource()
+ * @param rows The expected number of rows
+ * @param cols The expected number of columns
+ * @return The matrix
+ * @throws Exception
Review comment:
Done
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