crazyboycjr

#!/bin/bash

intf="rdma0"

if [ $# -gt 0 ]
then
	intf=$1
fi

ibdev=`ibdev2netdev | grep $intf | awk '{print $1}'`

crazyboycjr

#!/bin/bash

port=$1
if [ -z $port ]; then port=22; fi
echo 'scan port:' $port
for i in {1..254}; do echo 10.2.96.$i; done | xargs -P 300 -I {} sh -c "nc {} $port -z -w 1 && echo {} || true"

crazyboycjr

PFC headroom formula

According to the 3th page of the reference material, the following elements need to be taken into consideration

• Maximum transmission unit (MTU) on the transimitting end of receiver R
• Speed of Wire W
• Transceiver latency (negligible) < 1280bytes
• Response time of sender S
• MTU on the transmitting end of sender S

The headroom should be the possible total length of bits transmitted in these five stages above.

crazyboycjr

PACKAGE = main

PDF = ${PACKAGE}.pdf

all:  ${PDF}

%.pdf:  %.tex
	xelatex $<
	- bibtex $*
	xelatex $<

crazyboycjr

#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <glob.h>
#include <limits.h>
#include <netdb.h>
#include <poll.h>
#include <pthread.h>
#include <semaphore.h>
#include <stddef.h>

crazyboycjr

#include "prism/logging.h"
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <string>
#include <iostream>
#include <fstream>
#include <unordered_map>

crazyboycjr

diff -Naur mvapich2-2.3/src/include/mpi.h.in mvapich2-2.3_new/src/include/mpi.h.in
--- mvapich2-2.3/src/include/mpi.h.in	2018-07-24 22:30:00.000000000 +0800
+++ mvapich2-2.3_new/src/include/mpi.h.in	2019-09-07 21:44:17.173515626 +0800
@@ -1138,6 +1138,9 @@
 int MPI_Initialized(int *flag);
 int MPI_Abort(MPI_Comm comm, int errorcode);
 
+extern void* g_mpi_comm_world;
+inline void* MPI_Comm_world_comm() { return g_mpi_comm_world; }
+

crazyboycjr

{
    "env": {
        "kernel_release": "5.5.2-arch1-1"
    },
    "configurations": [
        {
            "name": "Linux",
            "includePath": [
                "${workspaceFolder}/**",
                "/usr/lib/modules/${env:kernel_release}/build/include",

crazyboycjr

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=wheel

network={
  ssid="iFudan.1x"
  scan_ssid=1
  key_mgmt=WPA-EAP
  identity="your_stuid"
  password="your_passwd"
  eap=PEAP

crazyboycjr

#!/bin/sh

echo -n 'MSN' | toilet -f mono12 -F border --metal > /etc/motd && fortune | cowsay -f tux >> /etc/motd
echo 'Have a lot of fun...' >> /etc/motd