多CPU,多核下BOINC的注意事项.

netkiller

General preferences
specify when and how BOINC uses your computer
On multiprocessors, use at most        8 processors

multiprocessors 默认是2 ,即使用2个CPU,如果是HT它当它为2个CPU

我的机器是双CPU,双核至强,没有HT, BOINC 认为是4个CPU.

4个CPU如果你不增加multiprocessors的话,你的机器再强他也只是运行两个进程.

我现在将它设为8,目前手头还没有8个CPU的机器. 已经跳够了..

On multiprocessors, use at most        8 processors

再来看看top

top - 14:29:50 up 2 days, 17:30,  3 users,  load average: 3.41, 2.04, 1.26
Tasks:  75 total,   2 running,  73 sleeping,   0 stopped,   0 zombie
Cpu0  :  0.0% us,  0.0% sy,  1.4% ni, 98.6% id,  0.0% wa,  0.0% hi,  0.0% si
Cpu1  :  0.0% us,  0.0% sy,  1.4% ni, 98.5% id,  0.0% wa,  0.0% hi,  0.0% si
Cpu2  :  0.0% us,  0.0% sy,  1.5% ni, 98.5% id,  0.0% wa,  0.0% hi,  0.0% si
Cpu3  :  0.0% us,  0.0% sy,  1.0% ni, 99.0% id,  0.0% wa,  0.0% hi,  0.0% si
Mem:   4149144k total,   385080k used,  3764064k free,    39392k buffers
Swap:  2031608k total,        0k used,  2031608k free,   167308k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
8347 root      34  19 55632  31m 2436 S  100  0.8   0:57.64 setiathome-5.12
8349 root      34  19 55968  31m 2440 S  100  0.8   0:57.65 setiathome-5.12
8348 root      34  19 56040  31m 2436 S  100  0.8   0:57.56 setiathome-5.12
8350 root      34  19 55540  30m 2532 S  100  0.8   0:57.65 setiathome-5.12
    1 root      16   0  3576  548  472 S    0  0.0   0:01.01 init
    2 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/0
    3 root      34  19     0    0    0 S    0  0.0   0:00.06 ksoftirqd/0
    4 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/1
    5 root      34  19     0    0    0 S    0  0.0   0:01.25 ksoftirqd/1
    6 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/2
    7 root      34  19     0    0    0 S    0  0.0   0:00.06 ksoftirqd/2
    8 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/3
    9 root      34  19     0    0    0 S    0  0.0   0:01.25 ksoftirqd/3

netkiller

4CPU个是100%真爽:)

top - 14:36:29 up 2 days, 17:37,  3 users,  load average: 3.99, 3.48, 2.20
Tasks:  75 total,   2 running,  73 sleeping,   0 stopped,   0 zombie
Cpu0  :  0.0% us,  0.0% sy, 100.0% ni,  0.0% id,  0.0% wa,  0.0% hi,  0.0% si
Cpu1  :  0.0% us,  0.0% sy, 100.0% ni,  0.0% id,  0.0% wa,  0.0% hi,  0.0% si
Cpu2  :  0.0% us,  0.0% sy, 100.0% ni,  0.0% id,  0.0% wa,  0.0% hi,  0.0% si
Cpu3  :  0.0% us,  0.0% sy, 100.0% ni,  0.0% id,  0.0% wa,  0.0% hi,  0.0% si
Mem:   4149144k total,   385840k used,  3763304k free,    39560k buffers
Swap:  2031608k total,        0k used,  2031608k free,   167140k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
8347 root      34  19 55632  31m 2480 S  100  0.8   7:36.61 setiathome-5.12
8348 root      34  19 56040  32m 2484 S  100  0.8   7:36.40 setiathome-5.12
8349 root      34  19 55968  31m 2484 S  100  0.8   7:36.87 setiathome-5.12
8350 root      34  19 55540  31m 2572 S  100  0.8   7:36.96 setiathome-5.12
8396 root      16   0  2764  948  760 R    0  0.0   0:00.28 top
    1 root      16   0  3576  548  472 S    0  0.0   0:01.01 init
    2 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/0
    3 root      34  19     0    0    0 S    0  0.0   0:00.06 ksoftirqd/0
    4 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/1
    5 root      34  19     0    0    0 S    0  0.0   0:01.25 ksoftirqd/1
    6 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/2
    7 root      34  19     0    0    0 S    0  0.0   0:00.06 ksoftirqd/2
    8 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/3
    9 root      34  19     0    0    0 S    0  0.0   0:01.25 ksoftirqd/3

zglloo

那么PD915 或者扣肉可以设置这样吗?

netkiller

可以.

扣肉就是双核吧??

我上面的机就是双CPU双核.
2个CPU ,每个都是扣肉, 哈哈:)

PD915是什么??

zglloo

奔腾D915
CPU系列：奔腾D
核心数量：双核心
主频（MH：2800MHz
总线频率：800MHz
插槽类型：LGA 775  
L2缓存：2MB*2

iwait

太牛了，可惜俺没钱

netkiller

原帖由 zglloo 于 2007-3-22 22:45 发表
奔腾D915
CPU系列：奔腾D
核心数量：双核心
主频（MH：2800MHz
总线频率：800MHz
插槽类型：LGA 775  
L2缓存：2MB*2

不错.可以这样设的...

我今天把redhat as4 改装ubuntu 了...

我把6块SAS硬盘把拔下来了......哈哈...
按理说我没有做写入操作,应该插回去RAID还能实回来...

SAS硬盘真爽:) 10几分种就装完...

zglloo

有些不明白  你可以将你的参数  贴图吗 我运行 R@H没有反映

netkiller

参数：

Processor usage
Do work while computer is running on batteries?
(matters only for portable computers)        no
Do work while computer is in use?        yes
Do work only between the hours of        (no restriction)
Leave applications in memory while suspended?
(suspended applications will consume swap space if 'yes')        no
Switch between applications every
(recommended: 60 minutes)        60 minutes
On multiprocessors, use at most        8 processors
Use at most
Enforced by version 5.6 and greater        100 percent of CPU time
Disk and memory usage
Use at most        100 GB disk space
Leave at least
(Values smaller than 0.001 are ignored)        0.001 GB disk space free
Use at most        10% of total disk space
Write to disk at most every        60 seconds
Use at most        75% of page file (swap space)
Use at most
Enforced by version 5.8 and greater        50% of memory when computer is in use
Use at most
Enforced by version 5.8 and greater        90% of memory when computer is idle
Network usage
Connect to network about every
(determines size of work cache; maximum 10 days)         0.1 days
Confirm before connecting to Internet?
(matters only if you have a modem, ISDN or VPN connection)        no
Disconnect when done?
(matters only if you have a modem, ISDN or VPN connection)        yes
Maximum download rate:        no limit
Maximum upload rate:        no limit
Use network only between the hours of
Enforced by versions 4.46 and greater        (no restriction)
Skip image file verification?
Check this ONLY if your Internet provider modifies image files (UMTS does this, for example).
Skipping verification reduces the security of BOINC.        no

colo

最新的windows版boinc默认使用16个cpu

Musi_Zhang

Turion64，开了3个

DF3-CQB

LZ牛人啊．．．公家的机器？．．．

eonhy

两路至强而已

机房里多的是,比如x346这类低端PC服务器

只是都有应用在上面,不能随便切换到外网