Development of classes to control different components like CPU

1

I have just published my first public project on GitHub, named ForClust. The project is developed using Fortran 2003 and 2008 and aims to develop classes for controlling various components such as CPU on Linux systems.
I have developed this project in my spare time as a hobby. Could it be interesting? I am looking forward to your feedback.

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2

I have encountered such errors after typing fpm test:

test_set                               done.
test_get_base_freq                     done.
[100%] Project compiled successfully.
ERROR STOP file not found: /sys/devices/system/node/node0/cpu0/cpufreq/base_frequency

Error termination. Backtrace:
#0  0x7f5f90a23ad0 in ???
#1  0x7f5f90a24649 in ???
#2  0x7f5f90a25cb7 in ???
#3  0x5564f74534d8 in __forclust_MOD_select_node
        at ./src/forclust.f90:171
#4  0x5564f7449440 in test
        at test/test_set_cpu_debug_on.f90:11
#5  0x5564f7449761 in main
        at test/test_set_cpu_debug_on.f90:4
ERROR STOP file not found: /sys/devices/system/node/node0/cpu0/cpufreq/base_frequency

Error termination. Backtrace:

The /sys/devices/system/node/node0/cpu0/cpufreq/ directory is present on my system, but there is no base_frequency file inside.

3

In my Ubuntu 22.10 system, the files in that directory are:

$ ls
affected_cpus     cpuinfo_min_freq            related_cpus                 scaling_cur_freq  scaling_governor  scaling_min_freq
cpuinfo_max_freq  cpuinfo_transition_latency  scaling_available_governors  scaling_driver    scaling_max_freq  scaling_setspeed
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4

Thanks for your report.
I removed “error stop” and added a default value for when a file is not found.

1 Like
5

Thanks, it runs now:

test_get_base_freq                     done.
[100%] Project compiled successfully.
cpuinfo min frequency:  1600000
NODE: 1
==============================
intel turbo:            off
------------------------------
CPU: 1
online:                 1
base frequency:         0
cpuinfo max frequency:  3300000
cpuinfo min frequency:  1600000
scaling cur frequency:  3292699
scaling max frequency:  3300000
scaling min frequency:  1600000
scaling governor:       schedutil
energy perf preference: not found
------------------------------
CPU: 2
...

Only 4 cores on my old PC, not 16!

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