Do you know if there is a UNIX command that will tell me what the CPU configuration for my Sun OS UNIX machine is? I am also trying to determine the memory configuration. Is there a UNIX command that will tell me that?
There is no standard Unix command, AFAIK. I haven't used Sun OS, but on Linux, you can use this:
cat /proc/cpuinfo
Sorry that it is Linux, not Sun OS. There is probably something similar though for Sun OS.
The nproc command shows the number of processing units available:
$ nproc
Sample outputs: 4
lscpu gathers CPU architecture information form /proc/cpuinfon in human-read-able format:
$ lscpu
Sample outputs:
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 8
On-line CPU(s) list: 0-7
Thread(s) per core: 1
Core(s) per socket: 4
CPU socket(s): 2
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 15
Stepping: 7
CPU MHz: 1866.669
BogoMIPS: 3732.83
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 4096K
NUMA node0 CPU(s): 0-7
Try psrinfo to find the processor type and the number of physical processors installed on the system.
Firstly, it probably depends which version of Solaris you're running, but also what hardware you have.
On SPARC at least, you have psrinfo to show you processor information, which run on its own will show you the number of CPUs the machine sees. psrinfo -p shows you the number of physical processors installed. From that you can deduce the number of threads/cores per physical processors.
prtdiag will display a fair bit of info about the hardware in your machine. It looks like on a V240 you do get memory channel info from prtdiag, but you don't on a T2000. I guess that's an architecture issue between UltraSPARC IIIi and UltraSPARC T1.
I think you can use prtdiag or prtconf on many UNIXs
My favorite is to look at the boot messages. If it's been recently booted try running /etc/dmesg. Otherwise find the boot messages, logged in /var/adm or some place in /var.
Related
My server cpu is Intel(R) Xeon(R) Silver 4214 CPU # 2.20GHz The detail
I wonder why this CPU support TEE but don't support Intel SGX? whta's the point? is there any way I can install SGX by myself or run SGX program on this server?
Your CPU supports TXT (Trusted Execution Technology), not TEE (Trusted execution environment).
TXT is a different technology. You can read it up here.
I'm new to NATS, I first bench the NATS with nats-bench
quanlm#quanlm2:~/go/src/github.com/nats-io/nats.go/examples/nats-bench$ go run main.go -np 1 -n 100000000 -ms 1600000 -csv test foo
Starting benchmark [msgs=100000000, msgsize=1600000, pubs=1, subs=0]
Pub stats: 20,848,474 msgs/sec ~ 30.34 TB/sec
Saved metric data in csv file test
My computer setup:
"Intel(R) Xeon(R) CPU E5-2630 v4 # 2.20GHz CPU(s): 16
On-line CPU(s) list: 0-15
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 16
CPU MHz: 2199.996"
Memory: 24GB
SSD
I have no idea how nat-bench work to reach that 30.34 TB/sec
Is this just a bug or I did somethings wrong ?
Btw: what does msgsize count in: bits/byte ?
Sorry for the delay. You are publishing 100 million messages, each of 1600000 bytes (about 1.5 MB). The bench utility reports that it was able to send 20,848,474 messages per second, and since one message is 1600000 bytes, that is: 20,848,474 * 1600000 = 33357558400000 bytes per second, which is about 30.34 TB per second.
i am running an mpi program on the below linux machine resources:
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 32
On-line CPU(s) list: 0-31
Thread(s) per core: 2
Core(s) per socket: 8
the problem happens when i spawn the processes using:
MPI_Comm_spawn("./processes/montecarlo", array_of_argv, numworkers,
MPI_INFO_NULL,
0, MPI_COMM_SELF, &workercomm, MPI_ERRCODES_IGNORE);
numworkers if i set it to 30( as i have 32 CPU) or even to 20, or to 15 ==> i w ill have the message of:
There are not enough slots available in the system to satisfy the 21 slots
that were requested by the application:
./processes/montecarlo
Either request fewer slots for your application, or make more slots
available for use.
I'm using Microsoft R Open on a GCE instance that has two vCPUs. Here are its specs.
$ lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1
Thread(s) per core: 2
Core(s) per socket: 1
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 63
Model name: Intel(R) Xeon(R) CPU # 2.30GHz
Stepping: 0
CPU MHz: 2300.000
BogoMIPS: 4600.00
Hypervisor vendor: KVM
Virtualization type: full
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 46080K
NUMA node0 CPU(s): 0,1
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush
mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc
eagerfpu pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hyp
ervisor lahf_lm abm fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms xsaveopt
Even though I have two cores, Microsoft R Open seems to recognize only one of them, so I'm not taking full advantage of my computing capacity. I can't set the numbers of threads manually either.
Microsoft R Open 3.3.2
The enhanced R distribution from Microsoft
Microsoft packages Copyright (C) 2016 Microsoft Corporation
Using the Intel MKL for parallel mathematical computing(using 1 cores).
Default CRAN mirror snapshot taken on 2016-11-01.
See: https://mran.microsoft.com/.
> getMKLthreads()
[1] 1
> setMKLthreads(2)
Number of threads at maximum: no change has been made.
Here's a graph showing CPU usage. It never uses more than 50% of CPU power.
So, what should I do so I can use all my cores with MRO?
you are running Xeon which is hyper threaded . You have 1 cpu with hyper threading,the os treats it as 2 cpus but there is only one physical cpu. MRO uses the physical cores only(without hyper threading)
You can use this:
library(doParallel)
no_cores <- detectCores() - 1
registerDoParallel(cores=no_cores)
It will one core less than the actual cores you have. It leaves one core for OS operations. Try it out.
My Hudson jobs are crashing on each run with this error:
Caused by: java.io.IOException: error=12, Not enough space
at java.lang.UNIXProcess.forkAndExec(Native Method)
I found documention on StackOverflow and on the Jenkins website regarding this error, which indicate a problem of swap space (https://wiki.jenkins-ci.org/display/JENKINS/IOException+Not+enough+space).
However, maybe my problem is different or not, but if I launch the process manually it works fine.
A weird thing is I see different resuls from top of from prstat:
Specs:
Hudson processes are running in their own Unix user
OS: SunOS dc5c00-d12 5.10 Generic_147440-19 sun4v sparc sun4v
Memory:
from top:
32G phys mem, 6255M free mem, 16G total swap, 16G free swap
from prstat
NPROC USERNAME SWAP RSS MEMORY TIME CPU
50 user1 12G 12G 39% 89:02:31 0.3%
36 user2 11G 6779M 21% 155:17:41 0.0%
26 user3 10G 8509M 26% 4787:37:4 8.0%
6 hudson 572M 556M 1.7% 0:08:25 0.0%
57 root 280M 285M 0.9% 138:46:05 0.0%
Can anywone confirm if I have a swap issue? top shows 16GB free...
EDIT:
results from swap -s (after problem being remporarly resolved)
total: 19940168k bytes allocated + 12578048k reserved = 32518216k used, 4118208k available
.
It is certainly a swap issue.
top is reporting as free swap blocks that do not contain paginated data. However, even while unused, some of these blocks can be reserved (i.e untouched still allocated virtual memory). When you have no more blocks to back memory reservations, you got this "Not enough space" exception.
swap -s shows your applications are reserving more that 12 GB while your swap area is just 16 GB. I would double the size of your swap to prevent virtual memory shortage in your case.