问题描述
在天体物理学的背景下，我启动了一个大型仿真（enzo代码），并在128个核上执行了MPI，
mpirun -np 128 ./enzo.exe amr_cosmology.enzo
@H_502_4@，在运行过程中出现以下错误：将其标记为Hardware Error@H_502_4@，因此得出结论，总RAM（1GB）棒是坏的。如您所见，代码不会停止，但是这些错误消息通常会在所有代码的整个运行过程中发生：
TopGrid dt = 3.705042e-02 time = 1.2350099725762 cycle = 14 z = 834.55610989934
TopGrid dt = 3.816191e-02 time = 1.272060395839 cycle = 15 z = 818.25224654732
TopGrid dt = 3.930675e-02 time = 1.3102223091899 cycle = 16 z = 802.26651295398
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711318] [Hardware Error]: Corrected error,no action required.
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711377] [Hardware Error]: cpu:2 (17:31:0) MC17_STATUS[-|CE|MiscV|-|AddrV|-|-|SyndV|-|CECC]: 0x9c2041000000011b
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711387] [Hardware Error]: Error Addr: 0x0000001c9f3d4ac0
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711388] [Hardware Error]: IPID: 0x0000009600450f00,Syndrome: 0x0f5940000a801001
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711399] [Hardware Error]: Unified Memory Controller Extended Error Code: 0
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711407] [Hardware Error]: Unified Memory Controller Error: DRAM ECC error.
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711422] [Hardware Error]: cache level: L3/GEN,tx: GEN,mem-tx: RD
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711474] [Hardware Error]: Corrected error,no action required.
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711479] [Hardware Error]: cpu:2 (17:31:0) MC18_STATUS[Over|CE|MiscV|-|AddrV|-|-|SyndV|-|CECC]: 0xdc2041000000011b
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711483] [Hardware Error]: Error Addr: 0x0000001ee2f9b140
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711484] [Hardware Error]: IPID: 0x0000009600550f00,Syndrome: 0xda9020000a800d01
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711489] [Hardware Error]: Unified Memory Controller Extended Error Code: 0
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711492] [Hardware Error]: Unified Memory Controller Error: DRAM ECC error.
Message from syslogd@pablo at Sep 24 20:52:00 ...
kernel:[2415943.711497] [Hardware Error]: cache level: L3/GEN,mem-tx: RD
TopGrid dt = 4.048593e-02 time = 1.3495290567141 cycle = 17 z = 786.59270291163
TopGrid dt = 4.170048e-02 time = 1.3900149827028 cycle = 18 z = 771.22472945212
TopGrid dt = 4.295147e-02 time = 1.4317154617942 cycle = 19 z = 756.15662471201
@H_502_4@这是什么类型的错误：它是自动更正还是确实是硬件故障？无论如何，出了点问题。