I'm trying to run the network simulation which I have built in omnet++ ver 5.6.2 to gather the data, but every time I try and run it I get the error: "Errors exist in required project(s) inet"
I have got inet open and I have managed to import the inet modules into my simulation so I don't understand how I have got this error coming up especially as I have run the simulation successfully on other machines
error
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Recently I installed Intel OneAPI including c compiler, FORTRAN compiler and mpi library and complied VASP with it.
Before presenting the question, there are some tricks I need to clarify during the installation of VASP:
GLIBC2.14: the cluster is an old machine with a glibc version of 2.12, where OneAPI needs a version of 2.14. So I compile the GLIBC2.14 and export the ld_path: export LD_LIBRARY_PATH="~/mysoft/glibc214/lib:$LD_LIBRARY_PATH"
ld 2.24: The ld version is 2.20 in the cluster, while a higher version is needed. So I installed binutils 2.24.
There is one master computer connected with 30 calculating nodes in the cluster. The calculation is executed with 3 ways:
When I do the calculation in the master, it's totally OK.
When I login the nodes manually with rsh command, the calculation in the logged node is also no problem.
But usually I submit the calculation script from the master (with slurm or pbs), and then do the calculation in the node. In that case, I met following error message:
[mpiexec#node3.alineos.net] poll_for_event (../../../../../src/pm/i_hydra/libhydra/demux/hydra_demux_poll.c:159): check exit codes error
[mpiexec#node3.alineos.net] HYD_dmx_poll_wait_for_proxy_event (../../../../../src/pm/i_hydra/libhydra/demux/hydra_demux_poll.c:212): poll for event error
[mpiexec#node3.alineos.net] HYD_bstrap_setup (../../../../../src/pm/i_hydra/libhydra/bstrap/src/intel/i_hydra_bstrap.c:1062): error waiting for event
[mpiexec#node3.alineos.net] HYD_print_bstrap_setup_error_message (../../../../../src/pm/i_hydra/mpiexec/intel/i_mpiexec.c:1015): error setting up the bootstrap proxies
[mpiexec#node3.alineos.net] Possible reasons:
[mpiexec#node3.alineos.net] 1. Host is unavailable. Please check that all hosts are available.
[mpiexec#node3.alineos.net] 2. Cannot launch hydra_bstrap_proxy or it crashed on one of the hosts. Make sure hydra_bstrap_proxy is available on all hosts and it has right permissions.
[mpiexec#node3.alineos.net] 3. Firewall refused connection. Check that enough ports are allowed in the firewall and specify them with the I_MPI_PORT_RANGE variable.
[mpiexec#node3.alineos.net] 4. pbs bootstrap cannot launch processes on remote host. You may try using -bootstrap option to select alternative launcher.
I only met this error with oneAPI compiled codes but Intel® Parallel Studio XE compiled. Do you have any idea of this error? Your response will be highly appreciated.
Best,
Léon
Could it be a permissions error with the Slurm agent not having the correct permissions or library path?
I am trying to Interface a BLE module based on Nordic's nrf52840 to a Yocto based SBC, to which all the BlueZ related packages have been added.
I have flashed Zephyr's sample hci_uart program onto the module. The module seems to run perfectly on my Linux PC (BlueZ version 5.48), whereas on the SBC(BlueZ version 5.54) it fails to get inited. Here's the error that comes when I use
root#rb-imx6:~# hciconfig hci0 up
root#rb-imx6:~# Can't init device hci0: Cannot assign requested address (99)
Can anyone please help me out on this?
Thanks in advance.
The error of assigning an address is caused by missing Linux kernel configuration options:
CONFIG_CRYPTO_USER
CONFIG_CRYPTO_USER_API
CONFIG_CRYPTO_USER_API_AEAD
CONFIG_CRYPTO_USER_API_HASH
CONFIG_CRYPTO_AES
CONFIG_CRYPTO_CCM
CONFIG_CRYPTO_AEAD
CONFIG_CRYPTO_CMAC
This is likely to happen with a self-built Buildroot or Yocto Embedded Linux system. If you run into this error, you should enable above options and recompile the kernel.
See the BlueZ requirements here: https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/README#n64
To see detailed debug output from BlueZ, run it with -d option:
bluetoothd -d
I'm trying to restore an a Xen VM (domain) from state file which I create previously. At the restore I need to modify the XML of this VM with the following command:
virsh restore domU.state --xml newconfig.xml
This command triggers an error with the following text:
error: Failed to restore domain from domU.state
error: argument unsupported: xml modification unsupported
What I already try:
restore without XML, which works perfectly.
run the command with the original xml the domain was created from
run the command with a totally different file which is not even an XML
At step 2. & 3. the error output was always the same.
Used versions:
xen 4.11.1
libvirt 5.1.0
os fedora 30
As the error message suggests, the ability to pass in custom XML when restoring a guest from a snapshot, is unfortunately not supported by the libvirt Xen (libxl) driver. This feature only works with QEMU/KVM at this time.
I created a virtual machine running an ubuntu server 16.04. I've already installed spark and all dependencies & prerequisites. My Spark cluster is running on the VM and all workers and the master can be started by start-all.sh. Now I'm trying to submit sparkR jobs to this cluster by using Rstudio from my local computer. I specified the sparkContext with master="spark://192.168.0.105:7077" to connect to the cluster, which is obviously running, when calling the IP:8080 master webUI. Is there any config, that has been specified, to call the master from another device, which is not part of the cluster yet?
The error in R is:
Error in handleErrors(returnStatus, conn) :
java.lang.IllegalArgumentException: requirement failed: Can only call getServletHandlers on a running MetricsSystem
You could try using the Livy rest api interface.
https://livy.incubator.apache.org/
see sparklyr - Connect remote hadoop cluster
Recently i installed cloudera quickstart vm 5.8 on my windows machine on top of VMware. By default Spark UI link and Zookeeper link was not there on Hue so, i just edited the hue.ini which had,
app_blacklist = zookeeper, spark
to
app_blacklist =
After doing this i was able to download some Spark examples but the Spark UI link was still not displayed. However i was able to get the zookeeper UI link.
From the downloaded examples i selected sample notebook through which i was able to get the Spark notebook UI. It had some examples but when i run them i'm getting the following error.
HTTPConnectionPool(host='localhost', port=8998): Max retries exceeded with url: /sessions (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7fdd7c5f2e50>: Failed to establish a new connection: [Errno 111] Connection refused',))
Do i need to make any changes in addition to the one i have done in hue.ini file. Please guide me through this.
The error was rectified after i installed livy server and ran it using the following commands in terminal;
export SPARK_HOME=/usr/lib/spark
export HADOOP_CONF_DIR=/etc/hadoop/conf
$HOME/livy-server-0.2.0/bin/livy-server