2.6.4-1

Add support for network collectives.
Add support for XML topology dump/injection.
Add text values for GDR and P2P Levels, including "NVL".
Add speed detection for PCI, Infiniband and Ethernet cards.
Add CPU detection for ARM and AMD CPUs.
Add support for adaptive routing on Infiniband.
Change NET plugin API to v3 : merge PCI path and GPU pointer
  capability into a single structure and add other properties.

src/include/utils.h

@@ -1,5 +1,5 @@
 /*************************************************************************
- * Copyright (c) 2016-2019, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2016-2020, NVIDIA CORPORATION. All rights reserved.
  *
  * See LICENSE.txt for license information
  ************************************************************************/
@@ -14,7 +14,7 @@ int ncclCudaCompCap();
 
 // PCI Bus ID <-> int64 conversion functions
 ncclResult_t int64ToBusId(int64_t id, char* busId);
-ncclResult_t busIdToInt64(char* busId, int64_t* id);
+ncclResult_t busIdToInt64(const char* busId, int64_t* id);
 
 ncclResult_t getBusId(int cudaDev, int64_t *busId);