【正文】 exit(0)。 } if((output = open(argv[1],O_CREAT|O_WRONLY,00007)) == 1) { printf( CAN NOT OPEN OUTPUT FILE: %s\n,argv[1])。 exit(0)。 } n = read(input,buf,80)。 n = write(output,buf,80)。 close(input)。 close(output)。 FD_ZERO(amp。rfds)。 FD_SET(0, amp。rfds)。 /* Wait up to five seconds. */ = 0。 = 200000。 select(1, amp。rfds, NULL, NULL, amp。tv)。 goto again。 return 0。 }程序1的功能是在單個(gè)節(jié)點(diǎn)上運(yùn)行一個(gè)程序，該程序每隔200ms訪問一次本節(jié)點(diǎn)的/proc/stat文件，并把讀取的信息寫入另一制定文件。該程序由程序2調(diào)用執(zhí)行。程序2 inital!/bin/csh frsh node101 /home/user11/lyx/output /home/node_stat/1amp。rsh node102 /home/user11/lyx/output /home/node_stat/2amp。rsh node103 /home/user11/lyx/output /home/node_stat/3amp。rsh node104 /home/user11/lyx/output /home/node_stat/4amp。rsh node105 /home/user11/lyx/output /home/node_stat/5amp。rsh node106 /home/user11/lyx/output /home/node_stat/6amp。rsh node107 /home/user11/lyx/output /home/node_stat/7amp。rsh node108 /home/user11/lyx/output /home/node_stat/8amp。rsh node109 /home/user11/lyx/output /home/node_stat/9amp。rsh node110 /home/user11/lyx/output /home/node_stat/10amp。rsh node111 /home/user11/lyx/output /home/node_stat/11amp。rsh node112 /home/user11/lyx/output /home/node_stat/12amp。rsh node113 /home/user11/lyx/output /home/node_stat/13amp。rsh node114 /home/user11/lyx/output /home/node_stat/14amp。rsh node115 /home/user11/lyx/output /home/node_stat/15amp。rsh node116 /home/user11/lyx/output /home/node_stat/16amp。rsh node117 /home/user11/lyx/output /home/node_stat/17amp。rsh node118 /home/user11/lyx/output /home/node_stat/18amp。rsh node119 /home/user11/lyx/output /home/node_stat/19amp。rsh node120 /home/user11/lyx/output /home/node_stat/20amp。rsh node121 /home/user11/lyx/output /home/node_stat/21amp。rsh node122 /home/user11/lyx/output /home/node_stat/22amp。rsh node123 /home/user11/lyx/output /home/node_stat/23amp。rsh node124 /home/user11/lyx/output /home/node_stat/24amp。rsh node125 /home/user11/lyx/output /home/node_stat/25amp。rsh node126 /home/user11/lyx/output /home/node_stat/26amp。rsh node127 /home/user11/lyx/output /home/node_stat/27amp。rsh node128 /home/user11/lyx/output /home/node_stat/28amp。rsh node129 /home/user11/lyx/output /home/node_stat/29amp。rsh node130 /home/user11/lyx/output /home/node_stat/30amp。rsh node131 /home/user11/lyx/output /home/node_stat/31amp。rsh node132 /home/user11/lyx/output /home/node_stat/32amp。rsh node133 /home/user11/lyx/output /home/node_stat/33amp。rsh node134 /home/user11/lyx/output /home/node_stat/34amp。rsh node135 /home/user11/lyx/output /home/node_stat/35amp。rsh node136 /home/user11/lyx/output /home/node_stat/36amp。rsh node137 /home/user11/lyx/output /home/node_stat/37amp。rsh node138 /home/user11/lyx/output /home/node_stat/38amp。rsh node139 /home/user11/lyx/output /home/node_stat/39amp。rsh node140 /home/user11/lyx/output /home/node_stat/40amp。rsh node141 /home/user11/lyx/output /home/node_stat/41amp。rsh node142 /home/user11/lyx/output /home/node_stat/42amp。rsh node143 /home/user11/lyx/output /home/node_stat/43amp。rsh node144 /home/user11/lyx/output /home/node_stat/44amp。rsh node145 /home/user11/lyx/output /home/node_stat/45amp。rsh node146 /home/user11/lyx/output /home/node_stat/46amp。rsh node147 /home/user11/lyx/output /home/node_stat/47amp。rsh node148 /home/user11/lyx/output /home/node_stat/48amp。rsh node149 /home/user11/lyx/output /home/node_stat/49amp。rsh node150 /home/user11/lyx/output /home/node_stat/50amp。rsh node151 /home/user11/lyx/output /home/node_stat/51amp。rsh node152 /home/user11/lyx/output /home/node_stat/52amp。rsh node153 /home/user11/lyx/output /home/node_stat/53amp。rsh node154 /home/user11/lyx/output /home/node_stat/54amp。rsh node155 /home/user11/lyx/output /home/node_stat/55amp。rsh node156 /home/user11/lyx/output /home/node_stat/56amp。rsh node157 /home/user11/lyx/output /home/node_stat/57amp。rsh node158 /home/user11/lyx/output /home/node_stat/58amp。rsh node159 /home/user11/lyx/output /home/node_stat/59amp。rsh node160 /home/user11/lyx/output /home/node_stat/60amp。rsh node161 /home/user11/lyx/output /home/node_stat/61amp。rsh node162 /home/user11/lyx/output /home/node_stat/62amp。rsh node163 /home/user11/lyx/output /home/node_stat/63amp。rsh node164 /home/user11/lyx/output /home/node_stat/64amp。exit程序2是一個(gè)shell文件，調(diào)用程序1對(duì)所有節(jié)點(diǎn)進(jìn)行初始化，在每個(gè)節(jié)點(diǎn)啟動(dòng)一個(gè)進(jìn)程，該進(jìn)程每隔200ms訪問一次本節(jié)點(diǎn)的/proc/stat文件，并把讀取的信息寫入/home/node_stat目錄下相應(yīng)文件中。程序3 include include include Xm/include Xm/include Xm/include Xm/String nodeid[] = { node101 Usage:, node102 Usage:, node103 Usage:, node104 Usage:, node105 Usage:, node106 Usage:, node107 Usage:, node108 Usage:, node109 Usage:, node110 Usage:, node111 Usage:, node112 Usage:, node113 Usage:, node114 Usage:, node115 Usage:, node116 Usage:, node117 Usage:, node118 Usage:, node119 Usage:, node120 Usage:, node121 Usage:, node122 Usage:, node123 Usage:, node124 Usage:, node125 Usage:, node126 Usage:, node127 Usage:, node128 Usage:, node129 Usage:, node130 Usage:, node131 Usage:, node132 Usage:, node133 Usage:, node134 Usage:, node135 Usage:, node136 Usage:, node137 Usage:, node138 Usage:, node139 Usage:, node140 Usage:, node141 Usage:, node142 Usage:, node143 Usage:, node144 Usage:, node145 Usage:, node046 Usage:, node147 Usage:, node148 Usage:, node149 Usage:, node150 Usage:, node151 Usage:, node152 Usage:, node153 Usage:, node154 Usage:, node155 Usage:, node156 Usage:, node157 Usage:, node158 Usage:, node159 Usage:, node160 Usage:, node161 Usage:, node162 Usage:, node163 Usage:, node164 Usage:}。Pixmap user_p,nice_p,sys_p,idle_p。Pixel