Update mana.1: document DEFINE_mpi_collective_p2p

Author: gc00

manpages/mana.1

@@ -1,5 +1,5 @@
 '\" t
-.\" Manual page created with latex2man on Sun Jun 20 15:09:00 2021
+.\" Manual page created with latex2man on Thu Mar 10 05:08:52 2022
 .\" NOTE: This file is generated, DO NOT EDIT.
 .de Vb
 .ft CW
@@ -10,7 +10,7 @@
 
 .fi
 ..
-.TH "MANA" "1" "20 June 2021" "MPI\-Agnostic Netw.\-Agnostic Ckpt " "MPI\-Agnostic Netw.\-Agnostic Ckpt "
+.TH "MANA" "1" "10 March 2022" "MPI\-Agnostic Netw.\-Agnostic Ckpt " "MPI\-Agnostic Netw.\-Agnostic Ckpt "
 .SH NAME
 
 \fBmana\fP
@@ -133,6 +133,13 @@ inside mtcp/mtcp_restart.c shortly before calling splitProcess()
  DMTCP/MANA will 
 pause during restart, before resuming execution, to allow `gdb 
 attach\&' (GDB must be on same node.) 
+.TP
+\fBDEFINE_mpi_collective_p2p\fP
+ For debugging only (high 
+runtime overhead): If this env. var. is set, and if re\-building 
+any files in contrib/mpi\-proxy\-split/mpi\-wrappers, then MPI 
+collective communication calls are translated to MPI_Send/Recv 
+at runtime. (Try \&'touch mpi_collective_p2p.c\&' if not re\-building.) 
 .PP
 To see status of ranks (especially during checkpoint), try: 
 .Vb

manpages/mana.latex2man

@@ -85,6 +85,11 @@ the last checkpoint.
     \item[\Opt{DMTCP_RESTART_PAUSE}] DMTCP/MANA will
 	pause during restart, before resuming execution, to allow `gdb
 	attach' (GDB must be on same node.)
+    \item[\Opt{DEFINE_mpi_collective_p2p}] For debugging only (high
+	runtime overhead): If this env. var. is set, and if re-building
+	any files in contrib/mpi-proxy-split/mpi-wrappers, then MPI
+	collective communication calls are translated to MPI_Send/Recv
+	at runtime. (Try 'touch mpi_collective_p2p.c' if not re-building.)
 \end{Description}
 To see status of ranks (especially during checkpoint), try:
 \begin{verbatim}