2.19.1-1

Add local user buffer registration for NVLink SHARP.
Add tuning plugin support.
Increase net API to v7 to allow for device-side packet reordering;
remove support for v4 plugins.
Add support for RoCE ECE.
Add support for C2C links.
Better detect SHM allocation failures to avoid crash with Bus Error.
Fix missing thread unlocks in bootstrap (Fixes #936).
Disable network flush by default on H100.
Move device code from src/collectives/device to src/device.

src/debug.cc

@@ -9,6 +9,7 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <sys/syscall.h>
+#include "param.h"
 
 int ncclDebugLevel = -1;
 static int pid = -1;
@@ -25,7 +26,7 @@ static __thread int tid = -1;
 void ncclDebugInit() {
   pthread_mutex_lock(&ncclDebugLock);
   if (ncclDebugLevel != -1) { pthread_mutex_unlock(&ncclDebugLock); return; }
-  const char* nccl_debug = getenv("NCCL_DEBUG");
+  const char* nccl_debug = ncclGetEnv("NCCL_DEBUG");
   int tempNcclDebugLevel = -1;
   if (nccl_debug == NULL) {
     tempNcclDebugLevel = NCCL_LOG_NONE;
@@ -45,7 +46,7 @@ void ncclDebugInit() {
    * This can be a comma separated list such as INIT,COLL
    * or ^INIT,COLL etc
    */
-  char* ncclDebugSubsysEnv = getenv("NCCL_DEBUG_SUBSYS");
+  const char* ncclDebugSubsysEnv = ncclGetEnv("NCCL_DEBUG_SUBSYS");
   if (ncclDebugSubsysEnv != NULL) {
     int invert = 0;
     if (ncclDebugSubsysEnv[0] == '^') { invert = 1; ncclDebugSubsysEnv++; }
@@ -97,7 +98,7 @@ void ncclDebugInit() {
    * then create the debug file. But don't bother unless the
    * NCCL_DEBUG level is > VERSION
    */
-  const char* ncclDebugFileEnv = getenv("NCCL_DEBUG_FILE");
+  const char* ncclDebugFileEnv = ncclGetEnv("NCCL_DEBUG_FILE");
   if (tempNcclDebugLevel > NCCL_LOG_VERSION && ncclDebugFileEnv != NULL) {
     int c = 0;
     char debugFn[PATH_MAX+1] = "";