<core_client_version>7.16.20</core_client_version>
<![CDATA[
<message>
(unknown error) - exit code 4294967148 (0xffffff6c)</message>
<stderr_txt>
2022-05-01 18:52:00 (10608): vboxwrapper (7.9.26200): starting
2022-05-01 18:52:02 (10608): Feature: Checkpoint interval offset (34 seconds)
2022-05-01 18:52:02 (10608): Feature: Enabling trickle-ups (Interval: 1800.000000)
2022-05-01 18:52:02 (10608): Detected: VirtualBox VboxManage Interface (Version: 6.1.14)
2022-05-01 18:52:02 (10608): Detected: Minimum checkpoint interval (600.000000 seconds)
2022-05-01 18:52:03 (10608): Create VM. (boinc_a1c2983d1a3c1231, slot#3)
2022-05-01 18:52:04 (10608): Setting Memory Size for VM. (1900MB)
2022-05-01 18:52:04 (10608): Setting CPU Count for VM. (1)
2022-05-01 18:52:05 (10608): Setting Chipset Options for VM.
2022-05-01 18:52:05 (10608): Setting Boot Options for VM.
2022-05-01 18:52:05 (10608): Setting Network Configuration for NAT.
2022-05-01 18:52:05 (10608): Disabling VM Network Access.
2022-05-01 18:52:06 (10608): Disabling USB Support for VM.
2022-05-01 18:52:06 (10608): Disabling COM Port Support for VM.
2022-05-01 18:52:06 (10608): Disabling LPT Port Support for VM.
2022-05-01 18:52:06 (10608): Disabling Audio Support for VM.
2022-05-01 18:52:07 (10608): Disabling Clipboard Support for VM.
2022-05-01 18:52:07 (10608): Disabling Drag and Drop Support for VM.
2022-05-01 18:52:08 (10608): Hardware acceleration CPU extensions not detected. Disabling VirtualBox hardware acceleration support.
2022-05-01 18:52:08 (10608): ERROR: Invalid configuration.  VM type requires acceleration but the current configuration cannot support it.
2022-05-01 18:52:08 (10608): Could not create VM
2022-05-01 18:52:08 (10608): 
   NOTE: VirtualBox has reported an improperly configured virtual machine. It was configured to require
    hardware acceleration for virtual machines, but your processor does not support the required feature.
    Please report this issue to the project so that it can be addresssed.
    Error Code: ERR_CPU_VM_EXTENSIONS_DISABLED

18:52:08 (10608): called boinc_finish(-148)

</stderr_txt>
]]>

NWChem that is used here for the calculations of the molecules, profit from multithreading only with bigger molecules.

I don't know if NWChem supports gpu calculation (CUDA or, better, OpenCL), but this may be a great improvement...

Just ignore this user. They make the same comment at every BOINC project like GPUs are some voodoo magic.

If I understand well, Vbox WU's checkpoint by themselves and native app (Linux only) doesn't checkpoint.

Of course tasks are very very long...