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The Japanese Institute of Atomic Energy will launch the Linux supercomputer

Silicon graph Corporation (New York Stock Exchange Code: SGI) today announced that the Japanese Institute of Atomic Energy (JAERI) will launch SGI (R) as its latest core computing system) altix (R) supercomputer helps develop leading energy systems. Through a bid, Fujitsu (Fujitsu Limited) and SGI Japan will work together to provide the Japanese Institute of Ato

Different STL implementation versions (V)

files/Borland/cbuilder5/include ). Despite the poor performance of rouge wave STL, C ++ builder's support for C ++ language standards has improved its performance to a certain extent. In addition, the source code is readable. You can get a more detailed introduction from the following website: http://www.rougewave.com. Unfortunately, this version has not been updated for a while and does not fully comply with the standards. Therefore, in Borland C ++ Builder 6.0, its position is replaced by ano

Work Notes 1:SMC Management node upgrade steps

Thepath for the file, want Toimport or click Browse to locate the file.. Review thelist of the hosts to the import Andun-check any of the hosts you does not want.Errors display foritems that cannot is imported.. Click Importto Import the list of hosts.. Click Close.5. Open the SMC client and COPY to regenerate a new payload such as the name "compute-20141216-payload"6. the "root" directory of this new payload is/opt/sgi/sgimc/imaging/root/payloads/co

The six components of the STL--Allocator (memory allocation, what's so esoteric)

SGI designed a two-tier Configurator, the first-level configurator directly uses malloc () and free (), and the second-level Configurator uses different strategies depending on the situation: when the configuration chunk exceeds 128bytes, the first-level configurator is called when it is "large enough", and when the configuration area is less than 128bytes, As "too small", in order to reduce the additional burden, the use of complex memory pool collat

Comparison of Three Types of allocator source code

Recently, I checked the content of the Space configurator and implemented the ACE_Allocator class of ACE, The allocator class implementation of SGI, And the allocator Implementation of MS. I also referred to Mr Hou Jie's STL source code analysis. there are many gains. I have heard that there is a file indicating that allocator in STL implements the standard, but I have not found it. According to my experiment, the standard allocator needs to implement

Building a blockchain with Go-Part 6: Trading (2)

previous article, one of the little details we skipped was mining rewards. Now, we are ready to refine this detail. Mining rewards, in fact, is a coinbase transaction. When a mining node starts digging a new block, it pulls the deal out of the queue and appends a Coinbase transaction to the front. The Coinbase transaction has only one output, which contains the miner's public key hash. The rewards are very simple and can be updated send : func (cli *CLI) send(from, to string, amount int) { .

HDU 3345 War Chess BFS

the steps are traced back, which leads to many repeated steps.For the second time, I changed BFS, but did not mark the array. Instead, I directly cracked the stack's T_T.The third time is BFS, but a visit [] [] array is added to store the number of steps. In the search process, the number of steps for visit [] [] is updated every time you go to this step, this maximizes the number of remaining steps to the coordinates (x, y.[Cpp]# Include # Include # Include # Include # Include # Include # Incl

Matrix transformations in iOS development

Recently in the study Coretext read a lot of examples of which many of them are not specifically understood so the internet collected the iOS matrix conversion principle to recordCgaffinetransformmake (A,b,c,d,tx,ty)Ad scaling BC rotational tx,ty displacement, base 2D matrixFormulaX=ax+cy+txY=bx+dy+ty1. Basic knowledge of matrices:struct Cgaffinetransform{CGFloat A, B, C, D;CGFloat

Detailed explanation of cable connector

describes how to create twisted pair wires in several application environments. MDI indicates that this port is a cascade port, while MDI-X indicates that this port is a common port. 1. ethernet network adapter and Hub Connection: When a PC or other network device is connected to the hub, the network cable is a direct connection, and the two ends of the twisted pair must be a pair of connections. At this time, the hub is the mdix port, the PC is an MDI port. 10 Mbps network cable only needs one

Xilinx FPGA high-speed serial transceiver Introduction

of the signal, keeping the low-frequency signal, to compensate the transmission line attenuation of the signal, improve the performance of the eye graph and guarantee the transmission quality.3 Xilinx FPGA Transceivers3.1 system ArchitectureThe 7 Series FPGAs GTX and GTH transceivers is power-efficient transceivers, supporting line rates from $ MB/s to 12.5 GB/s for GTX transceivers and 13.1 Gb/s for GTH transceivers. Four Gtxe2_channel Primitives and one Gtxe2_common primitive to be a Quad.The

HDU1429 BFS + State compression

[ -];Charmap[ -][ -];intN, M, T;structPoint {intx, Y, key, step;};voidinit () {pow2[0] =1; for(inti =1; I -; i++) Pow2[i]=1i;}BOOLPlaceintXinty) { if(X 0|| Y 0|| X >= N | | Y >= m | | Map[x][y] = ='*') return false; return true;}intBFsintSxintSy) {Queueque; Point TMP= {SX, SY,0,0}; Que.push (TMP); memset (Vis,0,sizeof(VIS)); vis[sx][sy][0] =1; while(!Que.empty ()) {Point U=Que.front (); Que.pop (); for(inti =0; I 4; i++) { inttx = u.x + dir[i][0]; intty = u.y +

The docker container cannot connect to the Lan of the host.

172.17.0.3 icmp_seq = 5 Destination Host UnreachableFrom 172.17.0.3 icmp_seq = 6 Destination Host UnreachableFrom 172.17.0.3 icmp_seq = 8 Destination Host UnreachableFrom 172.17.0.3 icmp_seq = 9 Destination Host Unreachable Install docker version:Docker versionReturn value:Client version: 1.7.1Client API version: 1.19Go version (client): go1.4.2Git commit (client): 786b29d/1.7.1OS/Arch (client): linux/amd64Server version: 1.7.1Server API version: 1.19Go version (server): go1.4.2Git commit (serv

Boltdb Source Analysis-mvcc/Persistence-3

//Root bucket freelist Pgid //Indicates which page the current freelist data exists in Pgid Pgid // Txid Txid // Checksum UInt64 //Checksum of the above data, verifying that the data is damaged} Freelist According to the description in the previous introduction, the boltdb disk space of the space is not freed, so a mechanism is required to achieve the reuse of disk space, that is, the freelist implementation of the mechanism of the file page cache. Its data struct

HDU 1010 Tempter of the Bone (DFS)

) {inttx=tmp.x+dir[i][0],ty=tmp.y+dir[i][1];if(Tx==dx Ty==dy)return 1;if(tx0|| ty0|| Tx>=n | | Ty>=m | | Vis[tx][ty] | | m[tx][ty]==' X ')Continue; POS Tmp2={tx,ty}; Q.push (TMP2); vis[tx][ty]=1; } }return 0;}intLef

Centos Virtual Machine NAT static IP settings

The NAT static IP address of the centos virtual machine sets the host machine to centos 6.3 64-bit, and the three virtual machines to centos 6.3 64-bit. The Virtual Machine network connection mode is the default NAT mode. By default, virtual machines dynamically obtain IP addresses through DHCP. To build hadoop on three virtual machines, you need to build these three virtual institutions into a LAN that can access each other. Therefore, all three virtual machines are set as static IP addresses.

Summary of several MySQL join query methods and mysql operation methods

external row Each join only occurs between two tables, even if the FROM clause contains multiple tables. Each join operation only performs the first three steps of the logical query statement. Each time a virtual table is generated, the virtual table is connected to the next table in the FROM clause in sequence. Repeat the preceding steps, until all tables in the FROM clause are processed.Preparations 1. Create a test database TestDB; create database TestDB; Create test tables table1 and tabl

Standard example of adding, deleting, modifying, and querying hibernate

An example of adding, deleting, modifying, and querying a small file written using the hibernate framework is as follows: it is a standard writing format; [java] package www.csdn.net. bookhome. daoimpl; import java. util. list; import org. hibernate. session; import org. hibernate. transaction; import www.csdn.net. bookhome. dao. adminDao; import www.csdn.net. bookhome. dao. baseHibernateDao; import www.csdn.net. bookhome. domain. admin; import www.csdn.net. bookhome. utils. hibernateSessionFact

Various queries in the Hibernate--hibernate

first, through the OID query@Testpublic void Func1 () { Session session = Hibernateutils.opensession (); Transaction tx = Session.begintransaction (); ---------------------------------------- Customer cs = session.get/load (Customer.class, 1L); Load is, until the use of the time to know System.out.println (CS); ---------------------------------------- tx.commit (); Session.close ();}Second, hql query1. Basic Inquiry@Tes

Modsecurity SQL injection attack

| request_filename| args_names| args| xml:/* \ "(\/\*\!?| \*\/|\-\-[\s\r\n\v\f]| (?:--[^-]*-)| ([^\-]) #.*[\s\r\n\v\f]|;? \\x00) "\" Phase:2,rev: ' 2.2.2 ', id: ' 981231 ', t:none,t:urldecodeuni,block,msg: ' SQL Comment Sequence detected. ', capture , Logdata: '%{tx.0} ', tag: ' Web_attack/sql_injection ', tag: ' wasctc/wasc-19 ', tag: ' owasp_top_10/a1 ', tag: ' Owasp_ Appsensor/cie1 ', tag: ' pci/6.5.2 ', setvar:tx.anomaly_score=+%{tx.warning_anomal

Intel DPDK installs deployment __intel in virtual machine VMware

RX qu Eues=1-rx desc=128-rx free threshold=0 RX threshold registers:pthresh=8 hthresh=8 wthresh=4 TX queues=1-t X desc=512-tx free threshold=0 TX threshold registers:pthresh=36 hthresh=0 wthresh=0 tx RS bit threshold=0- TXQ flags=0x0 Have a warning, what is the meaning of ... January 1, 2014, 22:32:10 Wed

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