When using the build defines on the command-line as documented in the example:
NR_TASKLETS=1 NR_DPUS=DPU_ALLOCATE_ALL make test
we need to ensure that the binary is rebuilt when needed (ie parameters have changed)

I hope asking this here is fine.

Dear UPMEM Tech support,

I have been grated acess to the server but I’m still working on the emulator. I was trying to run the DPU profiling tool and got the following errors:

When trying to run the following command:
sudo dpu-profiling functions -o chrometf.json -A -a -o checksum_host_optimized.vcf -- ./checksum_host_optimized

This following error appears:
Failed executing: ['perf', 'data', 'convert', '--to-chrometf', 'out_tmp.json', '--all', '--input', 'perf.data']

I tried to run the command that the python script is trying to execute and got the following:
No conversion support compiled in. perf should be compiled with environment variables LIBBABELTRACE=1 and LIBBABELTRACE_DIR=/path/to/libbabeltrace/

I tried multiple fixes, however the one that made the most sense was to build perf linked with babeltrace compiling perf with those enviroment variables. I installed babeltrace using sudo apt-get install babeltrace

So I navigated to the perf folder:

pribeiro@RTX3095:/home$ cd /linux/tools/perf

And tried to compile perf using the following command:
sudo LIBBABELTRACE=1 LIBBABELTRACE_DIR=/usr/bin/babeltrace/ make

This was the output of the make (relevant parts):

pribeiro@RTX3095:~/linux/tools/perf$ sudo LIBBABELTRACE=1 LIBBABELTRACE_DIR=/usr/bin/ make
BUILD: Doing 'make -j48' parallel build
Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h'
diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/perf_regs.h' differs from latest version at 'arch/arm64/include/uapi/asm/perf_regs.h'
diff -u tools/arch/arm64/include/uapi/asm/perf_regs.h arch/arm64/include/uapi/asm/perf_regs.h
Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h'
diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h
Warning: Kernel ABI header at 'tools/include/linux/coresight-pmu.h' differs from latest version at 'include/linux/coresight-pmu.h'
diff -u tools/include/linux/coresight-pmu.h include/linux/coresight-pmu.h
Makefile.config:459: No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR
Makefile.config:464: No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev
Makefile.config:617: DWARF support is off, BPF prologue is disabled
Makefile.config:920: Old version of libbfd/binutils things like PE executable profiling will not be available
Makefile.config:982: No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR
Makefile.config:993: No libcap found, disables capability support, please install libcap-devel/libcap-dev
Makefile.config:1006: No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev
Makefile.config:1090: No alternatives command found, you need to set JDIR= to point to the root of your Java directory

Auto-detecting system features:
... dwarf: [ OFF ]
... dwarf_getlocations: [ OFF ]
... glibc: [ on ]
... libbfd: [ OFF ]
... libbfd-buildid: [ OFF ]
... libcap: [ OFF ]
... libelf: [ on ]
... libnuma: [ OFF ]
... numa_num_possible_cpus: [ OFF ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ OFF ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ OFF ]
... disassembler-four-args: [ OFF ]

CC pmu-events/pmu-events.o
make[3]: Nothing to be done for 'install_headers'.

After, I ran make install:

pribeiro@RTX3095:~/linux/tools/perf$ sudo LIBBABELTRACE=1 LIBBABELTRACE_DIR=/usr/bin/ make install
BUILD: Doing 'make -j48' parallel build
Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h'
diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/perf_regs.h' differs from latest version at 'arch/arm64/include/uapi/asm/perf_regs.h'
diff -u tools/arch/arm64/include/uapi/asm/perf_regs.h arch/arm64/include/uapi/asm/perf_regs.h
Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h'
diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h
Warning: Kernel ABI header at 'tools/include/linux/coresight-pmu.h' differs from latest version at 'include/linux/coresight-pmu.h'
diff -u tools/include/linux/coresight-pmu.h include/linux/coresight-pmu.h
Makefile.config:459: No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR
Makefile.config:464: No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev
Makefile.config:617: DWARF support is off, BPF prologue is disabled
Makefile.config:920: Old version of libbfd/binutils things like PE executable profiling will not be available
Makefile.config:982: No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR
Makefile.config:993: No libcap found, disables capability support, please install libcap-devel/libcap-dev
Makefile.config:1006: No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev
Makefile.config:1090: No alternatives command found, you need to set JDIR= to point to the root of your Java directory

Auto-detecting system features:
... dwarf: [ OFF ]
... dwarf_getlocations: [ OFF ]
... glibc: [ on ]
... libbfd: [ OFF ]
... libbfd-buildid: [ OFF ]
... libcap: [ OFF ]
... libelf: [ on ]
... libnuma: [ OFF ]
... numa_num_possible_cpus: [ OFF ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ OFF ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ OFF ]
... disassembler-four-args: [ OFF ]

Makefile:210: Please install asciidoc xmlto to have the man pages installed
make[3]: Nothing to be done for 'try-install-man'.
make[3]: Nothing to be done for 'install_headers'.
DESCEND plugins
INSTALL trace_plugins
INSTALL binaries
INSTALL tests
INSTALL libexec
INSTALL bpf-headers
INSTALL bpf-examples
INSTALL perf-archive
INSTALL perf-iostat
INSTALL strace/groups
INSTALL perl-scripts
INSTALL python-scripts
INSTALL dlfilters
INSTALL perf_completion-script
INSTALL perf-tip

I tried to re-run the profiler and then the perf command and got the same erros as before.

Would you be so kind as to help me solve this issue?

Hi all,

I'm struggling to run this demo on real UPMEM. After issuing "make test", I keep getting DPU Error (dpu allocation error). The error occurs in this line. Does anyone have an idea how to troubleshoot this?

Cheers,
Hamid

plz help me! I followed steps in this website, but it didn't work. https://sdk.upmem.com/2023.2.0/02_HelloWorld.html
I have installed the upmem sdk tar.gz file and set my variables. But I can't execute the helloworld.c after dpu-upmem-dpurte-clang -o helloworld helloworld.c. If I execute file helloworld, it shows the architecture is not captible. How can I resolve this problem?

Hi,
First of all, I am sorry if this is not a good place to ask this.

I encountered an error using dpu-lldb.
I follow the sdk documentation to write the helloworld.c program for DPU, compile it, and run it in dpu-lldb.
The package I use is the deb package for SDK version 2020.3.0 on my own Ubuntu 18.04 server (no DPUs installed).

However, when I execute process launch, I got the following error:

error: process launch failed: 'A' packet returned an error: 8

Hope you can help me identify the problems.
Thank you!

Sincerely,
Kuo-Feng