Re: [ptp-user] Debug in PTP

[Greg Watson <g.watson@xxxxxxxxxxxx>]

Are you able to debug the program with gdb? i.e. set a breakpoint in main(), single step, print variables, etc?

There may be an option you need to pass to the mpicc command to enable the MPI debugging symbols.

Regards,

Greg

On Sep 26, 2017, at 5:44 PM, Francilio Araújo <francilioaraujo@xxxxxxxxx> wrote:

Yes. The project is configured with -g3.

Em ter, 26 de set de 2017 às 16:28, Greg Watson <g.watson@xxxxxxxxxxxx> escreveu:

Have you compiled your program with debugging (the "-g" flag)?

Regards,

Greg

On Sep 26, 2017, at 1:02 PM, Francilio Araújo <francilioaraujo@xxxxxxxxx> wrote:

Hello everyone,

I'm trying to debug a simple MPICH application in PTP 9.1.2.201705091731, Eclipse Oxygen on Linux Ubuntu 14.04 LTS. But I keep receiving this message

"b9dae14c-351e-4fe8-8d76-f7206a2e21c4: FAILED

Use of uninitialized value $response in pattern match (m//) at /home/francilio/.eclipsesettings/rms/MPICH2/start_debug_job.pl line 109.

Could not attach to process.  If your uid matches the uid of the target

process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try

again as the root user.  For more details, see /etc/sysctl.d/10-ptrace.conf

ptrace: Opera��ão não permitida.

/home/francilio/eclipse-workspace/mpiTesting/Debug/11539: Arquivo ou diretório n��o encontrado.

Nenhuma tabela de s\303\255mbolos est\303\241 carregada. Use o comando "file".

Error reading MPIR_debug_state at /home/francilio/.eclipsesettings/rms/MPICH2/start_debug_job.pl line 66.

#PTP job_id=11539

[mpiexec@MINIMAX012] Sending Ctrl-C to processes as requested

[mpiexec@MINIMAX012] Press Ctrl-C again to force abort"

The error seem to be generated in this line "$response = $gdb->get("print MPIR_debug_state");". When I run "print MPIR_debug_state" in gdb 7.7.1 I get "Nenhuma tabela de símbolos está carregada. Use o comando "file"." (No symbol table is loaded. use 'file' command).

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