HW2: RC3b - A MinMax-MPIexchange pipeline and small changes

2025-01-05 21:26:56 +02:00
parent c485d0db2d
commit 3bf4522448
35 changed files with 286 additions and 101 deletions
@@ -126,6 +126,49 @@ TEST_F(TMPIdistSort, distBubbletonic_test2) {
    }
 }

+/*
+ * MPI: SysTest (acceptance)
+ * Each process executes distBubbletonic for uin32_t [1 << 16] with pipeline
+ */
+TEST_F(TMPIdistSort, distBubbletonic_test3) {
+    // Create and fill vector
+    using tsValue_t = uint32_t;      // Test parameters
+    size_t ts_buffer_size = 1 << 16;
+
+    ShadowedVec_t<tsValue_t> ts_Data;
+    std::uniform_int_distribution<tsValue_t > dis(
+            std::numeric_limits<tsValue_t>::min(),
+            std::numeric_limits<tsValue_t>::max()
+    );
+    ts_Data.resize(ts_buffer_size);
+    std::generate(ts_Data.begin(), ts_Data.end(), [&]() { return dis(gen); });
+
+    // Set pipeline
+    config.pipeline = 8;
+
+    // Execute function under test in all processes
+    distBubbletonic(ts_Data, ts_mpi.size(), ts_mpi.rank());
+
+    // Local min and max
+    auto local_min = *std::min_element(ts_Data.begin(), ts_Data.end());
+    auto local_max = *std::max_element(ts_Data.begin(), ts_Data.end());
+
+    // Gather min/max to rank 0
+    std::vector<tsValue_t> global_mins(ts_mpi.size());
+    std::vector<tsValue_t> global_maxes(ts_mpi.size());
+    MPI_Datatype datatype = MPI_TypeMapper<tsValue_t>::getType();
+
+    MPI_Gather(&local_min, 1, datatype, global_mins.data(), 1, datatype, 0, MPI_COMM_WORLD);
+    MPI_Gather(&local_max, 1, datatype, global_maxes.data(), 1, datatype, 0, MPI_COMM_WORLD);
+
+    // Check results
+    EXPECT_EQ(std::is_sorted(ts_Data.begin(), ts_Data.end()), true);
+    if (ts_mpi.rank() == 0) {
+        for (size_t i = 1; i < global_mins.size(); ++i) {
+            EXPECT_LE(global_maxes[i - 1], global_mins[i]);
+        }
+    }
+}

 /*
 * MPI: SysTest (acceptance)
@@ -209,3 +252,46 @@ TEST_F(TMPIdistSort, distBitonic_test2) {
    }
 }

+/*
+ * MPI: SysTest (acceptance)
+ * Each process executes distBitonic for uin32_t [1 << 16] with pipeline
+ */
+TEST_F(TMPIdistSort, distBitonic_test3) {
+    // Create and fill vector
+    using tsValue_t = uint32_t;      // Test parameters
+    size_t ts_buffer_size = 1 << 16;
+
+    ShadowedVec_t<tsValue_t> ts_Data;
+    std::uniform_int_distribution<tsValue_t > dis(
+            std::numeric_limits<tsValue_t>::min(),
+            std::numeric_limits<tsValue_t>::max()
+    );
+    ts_Data.resize(ts_buffer_size);
+    std::generate(ts_Data.begin(), ts_Data.end(), [&]() { return dis(gen); });
+
+    // Set pipeline
+    config.pipeline = 8;
+
+    // Execute function under test in all processes
+    distBitonic(ts_Data, ts_mpi.size(), ts_mpi.rank());
+
+    // Local min and max
+    auto local_min = *std::min_element(ts_Data.begin(), ts_Data.end());
+    auto local_max = *std::max_element(ts_Data.begin(), ts_Data.end());
+
+    // Gather min/max to rank 0
+    std::vector<tsValue_t> global_mins(ts_mpi.size());
+    std::vector<tsValue_t> global_maxes(ts_mpi.size());
+    MPI_Datatype datatype = MPI_TypeMapper<tsValue_t>::getType();
+
+    MPI_Gather(&local_min, 1, datatype, global_mins.data(), 1, datatype, 0, MPI_COMM_WORLD);
+    MPI_Gather(&local_max, 1, datatype, global_maxes.data(), 1, datatype, 0, MPI_COMM_WORLD);
+
+    // Check results
+    EXPECT_EQ(std::is_sorted(ts_Data.begin(), ts_Data.end()), true);
+    if (ts_mpi.rank() == 0) {
+        for (size_t i = 1; i < global_mins.size(); ++i) {
+            EXPECT_LE(global_maxes[i - 1], global_mins[i]);
+        }
+    }
+}