#13432: fix t3k ethernet tests

Old microbenchmarking test uses physical device-ids causing issues when
assigned to a machine with different device id ordering

tests/tt_metal/tt_metal/perf_microbenchmark/ethernet/test_ethernet_hop_latencies_no_edm.cpp

@@ -8,6 +8,7 @@
 #include <random>
 #include <tuple>
 
+#include "impl/device/mesh_device_view.hpp"
 #include "tt_metal/common/logger.hpp"
 #include "device/tt_arch_types.h"
 #include "impl/device/device.hpp"
@@ -26,6 +27,7 @@
 #include "tt_metal/test_utils/stimulus.hpp"
 
 #include "tt_metal/detail/persistent_kernel_cache.hpp"
+#include "tt_metal/impl/device/mesh_device.hpp"
 
 using tt::tt_metal::Device;
 
@@ -41,8 +43,7 @@ class T3000TestDevice {
         num_devices_ = tt::tt_metal::GetNumAvailableDevices();
         if (arch_ == tt::ARCH::WORMHOLE_B0 and tt::tt_metal::GetNumAvailableDevices() == 8 and
             tt::tt_metal::GetNumPCIeDevices() == 4) {
-            devices_ = tt::tt_metal::detail::CreateDevices({0,1,2,3,4,5,6,7});
-            tt::Cluster::instance().set_internal_routing_info_for_ethernet_cores(true);
+            mesh_device_ = tt::tt_metal::MeshDevice::create(tt::tt_metal::MeshDeviceConfig(tt::tt_metal::MeshShape{2, 4}));
 
         } else {
             TT_THROW("This suite can only be run on T3000 Wormhole devices");
@@ -57,15 +58,12 @@ class T3000TestDevice {
 
     void TearDown() {
         device_open = false;
-        tt::Cluster::instance().set_internal_routing_info_for_ethernet_cores(false);
-        for (auto [device_id, device_ptr] : devices_) {
-            tt::tt_metal::CloseDevice(device_ptr);
-        }
+        mesh_device_->close_devices();
     }
 
-    std::map<chip_id_t, Device *> devices_;
     tt::ARCH arch_;
     size_t num_devices_;
+    std::shared_ptr<tt::tt_metal::MeshDevice> mesh_device_;
 
    private:
     bool device_open;
@@ -420,23 +418,51 @@ int main (int argc, char** argv) {
     TT_ASSERT(std::all_of(max_concurrent_samples.begin(), max_concurrent_samples.end(), [](std::size_t n) { return n > 0; }));
 
     T3000TestDevice test_fixture;
+    auto view = test_fixture.mesh_device_->get_view();
 
-    // Device setup
-    std::vector<chip_id_t> device_ids = std::vector<chip_id_t>{0, 1, 2, 3, 4, 5, 6, 7};
-
-    auto get_device_list = [](std::map<chip_id_t, Device*> &all_devices, std::size_t n_hops) {
+    auto get_device_list = [](const std::shared_ptr<MeshDeviceView>& view, std::size_t n_hops) {
         switch (n_hops) {
             case 2:
-                return std::vector<Device*>{all_devices[0], all_devices[1]};
+                return std::vector<Device*>{
+                    view->get_device(0, 0),
+                    view->get_device(0, 1),
+                };
 
             case 4:
-                return std::vector<Device*>{all_devices[0], all_devices[1], all_devices[2], all_devices[3]};
+                return std::vector<Device*>{
+                    view->get_device(1, 1),
+                    view->get_device(0, 1),
+                    view->get_device(0, 2),
+                    view->get_device(1, 2),
+                };
 
             case 8:
-                return std::vector<Device*>{all_devices[0], all_devices[4], all_devices[5], all_devices[1], all_devices[2], all_devices[6], all_devices[7], all_devices[3]};
+                return std::vector<Device*>{
+                    view->get_device(1, 1),
+                    view->get_device(1, 0),
+                    view->get_device(0, 0),
+                    view->get_device(0, 1),
+                    view->get_device(0, 2),
+                    view->get_device(0, 3),
+                    view->get_device(1, 3),
+                    view->get_device(1, 2),
+                };
 
             case 12: // Does an extra loop through the inner ring
-                return std::vector<Device*>{all_devices[0], all_devices[4], all_devices[5], all_devices[1], all_devices[2], all_devices[3], all_devices[0], all_devices[1], all_devices[2], all_devices[6], all_devices[7], all_devices[3]};
+                return std::vector<Device*>{
+                    view->get_device(1, 1),
+                    view->get_device(1, 0),
+                    view->get_device(0, 0),
+                    view->get_device(0, 1),
+                    view->get_device(0, 2),
+                    view->get_device(1, 2),
+                    view->get_device(1, 1),
+                    view->get_device(0, 1),
+                    view->get_device(0, 2),
+                    view->get_device(0, 3),
+                    view->get_device(1, 3),
+                    view->get_device(1, 2),
+                };
 
             default:
                 TT_THROW("Unsupported hop_count");
@@ -448,7 +474,7 @@ int main (int argc, char** argv) {
         constexpr std::size_t placeholder_arg_value = 1;
         for (auto n_hops : hop_counts) {
 
-            auto devices = get_device_list(test_fixture.devices_, n_hops);
+            auto devices = get_device_list(view, n_hops);
             std::vector<hop_eth_sockets> hop_eth_sockets = build_eth_sockets_list(devices);
 
             for (auto max_concurrent_samples : max_concurrent_samples) {

tests/ttnn/unit_tests/gtests/ttnn_test_fixtures.hpp

@@ -67,12 +67,7 @@ class T3kMultiDeviceFixture : public ::testing::Test {
         if (num_devices < 8 or arch != tt::ARCH::WORMHOLE_B0) {
             GTEST_SKIP() << "Skipping T3K Multi-Device test suite on non T3K machine.";
         }
-        constexpr auto DEFAULT_NUM_COMMAND_QUEUES = 1;
         mesh_device_ = MeshDevice::create(
-            DEFAULT_L1_SMALL_SIZE,
-            DEFAULT_TRACE_REGION_SIZE,
-            DEFAULT_NUM_COMMAND_QUEUES,
-            DispatchCoreType::WORKER,
             MeshDeviceConfig(MeshShape{2, 4}, MeshType::Ring));
     }
 

tt_metal/impl/device/mesh_device.cpp

@@ -216,11 +216,11 @@ MeshDevice::MeshDevice(const MeshShape& mesh_device_shape, MeshType type, std::w
     : mesh_device_shape(mesh_device_shape), type(type), mesh_id(generate_unique_mesh_id()), parent_mesh(parent_mesh) {}
 
 std::shared_ptr<MeshDevice> MeshDevice::create(
+    const MeshDeviceConfig& config,
     size_t l1_small_size,
     size_t trace_region_size,
     size_t num_command_queues,
-    DispatchCoreType dispatch_core_type,
-    const MeshDeviceConfig& config)
+    DispatchCoreType dispatch_core_type)
 {
     auto mesh_device = std::make_shared<MeshDevice>(config.mesh_shape, config.mesh_type);
     mesh_device->initialize(l1_small_size, trace_region_size, num_command_queues, dispatch_core_type, config);

tt_metal/impl/device/mesh_device.hpp

@@ -27,7 +27,7 @@ struct MeshDeviceConfig {
 
     MeshDeviceConfig(
         const MeshShape &mesh_shape,
-        MeshType mesh_type = MeshType::RowMajor) :
+        MeshType mesh_type) :
         mesh_shape(mesh_shape),
         offset(MeshOffset{0, 0}),
         physical_device_ids(std::vector<chip_id_t>()),
@@ -174,11 +174,11 @@ class MeshDevice : public std::enable_shared_from_this<MeshDevice> {
 
     static std::shared_ptr<MeshDevice> fetch_mesh_device(const std::vector<Device*>& devices);
     static std::shared_ptr<MeshDevice> create(
-        size_t l1_small_size,
-        size_t trace_region_size,
-        size_t num_command_queues,
-        DispatchCoreType dispatch_core_type,
-        const MeshDeviceConfig &config);
+        const MeshDeviceConfig &config,
+        size_t l1_small_size = DEFAULT_L1_SMALL_SIZE,
+        size_t trace_region_size = DEFAULT_TRACE_REGION_SIZE,
+        size_t num_command_queues = 1,
+        DispatchCoreType dispatch_core_type = DispatchCoreType::WORKER);
 };
 
 std::ostream &operator<<(std::ostream &os, const MeshDevice &mesh_device);

ttnn/cpp/pybind11/multi_device.hpp

@@ -37,13 +37,12 @@ void py_module(py::module& module) {
                         const std::pair<size_t, size_t>& offset,
                         const std::vector<chip_id_t>& physical_device_ids,
                         MeshType mesh_type) {
-                auto config = MeshDeviceConfig(mesh_device_shape, offset, physical_device_ids, mesh_type);
                 return MeshDevice::create(
+                    MeshDeviceConfig(mesh_device_shape, offset, physical_device_ids, mesh_type),
                     l1_small_size,
                     trace_region_size,
                     num_command_queues,
-                    dispatch_core_type,
-                    config);
+                    dispatch_core_type);
             }),
             py::kw_only(),
             py::arg("mesh_shape"),

ttnn/cpp/ttnn/multi_device.cpp

@@ -14,7 +14,7 @@ namespace ttnn::multi_device {
 
 std::shared_ptr<MeshDevice> open_mesh_device(const MeshShape& mesh_shape, size_t l1_small_size, size_t trace_region_size, size_t num_command_queues, DispatchCoreType dispatch_core_type, MeshType mesh_type, const std::pair<size_t, size_t>& offset, const std::vector<int>& physical_device_ids) {
     auto config = MeshDeviceConfig(mesh_shape, offset, physical_device_ids, mesh_type);
-    return MeshDevice::create(l1_small_size, trace_region_size, num_command_queues, dispatch_core_type, config);
+    return MeshDevice::create(config, l1_small_size, trace_region_size, num_command_queues, dispatch_core_type);
 }
 
 void close_mesh_device(const std::shared_ptr<MeshDevice>& mesh_device) {