[UR][L0] Disable Immediate Command Lists by default on MTL Linux

- disable using immediate command lists by default on MTL Linux to
  acheive the best performance without user environment changes

Signed-off-by: Neil R. Spruit <[email protected]>

Author: nrspruit

unified-runtime/source/adapters/level_zero/device.cpp

@@ -1795,12 +1795,18 @@ ur_device_handle_t_::useImmediateCommandLists() {
     bool isDG2OrNewer = this->isIntelDG2OrNewer();
     bool isDG2SupportedDriver =
         this->Platform->isDriverVersionNewerOrSimilar(1, 5, 30820);
+    bool isIntelMTLDevice = this->isIntelMTL();
     // Disable immediate command lists for DG2 devices on Windows due to driver
     // limitations.
     bool isLinux = true;
 #ifdef _WIN32
     isLinux = false;
 #endif
+    // Disable immediate command lists for Intel MTL devices on Linux by default
+    // due to driver limitations.
+    if (isIntelMTLDevice && isLinux) {
+      return NotUsed;
+    }
     if ((isDG2SupportedDriver && isDG2OrNewer && isLinux) || isPVC() ||
         isNewerThanIntelDG2()) {
       return PerQueue;

unified-runtime/source/adapters/level_zero/device.hpp

@@ -188,6 +188,12 @@ struct ur_device_handle_t_ : ur_object {
   // Checks if this GPU is an Intel Flex GPU or Intel Arc Alchemist
   bool isDG2() { return (ZeDeviceProperties->deviceId & 0xff00) == 0x5600; }
 
+  bool isIntelMTL() {
+    return (ZeDeviceProperties->vendorId == 0x8086 &&
+            ZeDeviceIpVersionExt->ipVersion >= 0x03118000 &&
+            ZeDeviceIpVersionExt->ipVersion <= 0x0311c004);
+  }
+
   bool isIntelDG2OrNewer() {
     return (ZeDeviceProperties->vendorId == 0x8086 &&
             ZeDeviceIpVersionExt->ipVersion >= 0x030dc000);