kaushikcfd

Step 1. Lower axpy.mlir to axpy.ll

mlir-opt -lower-affine -convert-loop-to-std -convert-std-to-llvm='emit-c-wrappers=1' axpy.mlir | mlir-translate --mlir-to-llvmir -o axpy.ll

Step 2. Get bitcode for the caller C.

clang -emit-llvm call_axpy.c -S -o call_axpy.bc

FrankSpierings

Container security notes

Internet references

Kernel and architecture

• namespaces - overview of Linux namespaces http://man7.org/linux/man-pages/man7/namespaces.7.html

• mount_namespaces - overview of Linux mount namespaces

hyunsik

#!/bin/bash

if [ -z $1 ] || [ -z $2 ] || [ -z $3 ] || [ -z $4 ]; then
  echo "usage: ../make_release src_dir tag_name version rc_num"
  exit -1;
fi

cd $1
CANDIDATE_TAG=`git tag --list $2`
if [ -z $CANDIDATE_TAG ]; then

asmaier

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Properties;
import org.I0Itec.zkclient.ZkClient;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import org.apache.kafka.clients.consumer.KafkaConsumer;

hyunsik

int sum_unrolled( int n, int *a )
{
    int sum = 0;

    /* do the body of the work in a faster unrolled loop */
    for( int i = 0; i < n/4*4; i += 4 )
    {
        sum += a[i+0];
        sum += a[i+1];
        sum += a[i+2];

rygorous

#include <immintrin.h>
#include <intrin.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

union Mat44 {
    float m[4][4];
    __m128 row[4];
};

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

rtyler

; A Records
@       3600    IN      A       63.246.20.93
eggplant        3600    IN      A       140.211.15.101
cucumber        3600    IN      A       63.246.20.93
spinach 3600    IN      A       173.203.60.151
lettuce 3600    IN      A       140.211.15.121
cabbage 3600    IN      A       140.211.15.130
lists   3600    IN      A       140.211.166.34

; CNAME Records