Re: [Starpu-devel] Data partition

[Mathieu Faverge <mathieu.faverge@inria.fr>]

Problem fixed, I forgot to change a cblk in blok :).
Mathieu

Le 09/06/2017 à 19:23, Mathieu Faverge a écrit :
> Hello,
>
> I have some trouble with the data partition functionnalities. Here is 
> what I do:
>
> On one side, I have my data descriptor in which I do multiple calls to:
>                 starpu_data_partition_plan( cblk->handler[0],
>                                             &filter, 
> cblkhandle->handletab );
>
> Which to my understanding, creates the data handler for the children 
> and register them.
>
> Then in the insertion task code, I have
>
> Some computations depending on cblk->handler[0] followed by:
>
> starpu_data_partition_submit( cblk->handler[0],
>                                       cblkhandle->handlenbr,
>                                       cblkhandle->handletab );
>
> To add some dependencies from the parent data, to all the children. 
> Then, I iterate on the children to do some computations, and I gather 
> the tasks with:
>         starpu_data_unpartition_submit( cblk->handler[0],
>                                         cblkhandle->handlenbr,
>                                         cblkhandle->handletab, 
> STARPU_MAIN_RAM );
>
>
> Then, I do a acquire/release on cblk->handle[0] and I'm done.
>
> The problem is that I get the following error:
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_select_src_node+0x249)[0x7fcf53d51529] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_create_request_to_fetch_data+0xf0c)[0x7fcf53d527fc] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_fetch_data_on_node+0xf4)[0x7fcf53d52bb4] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(starpu_prefetch_task_input_on_node+0x10c)[0x7fcf53d530bc] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_push_task_to_workers+0x1c8)[0x7fcf53d39358] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_repush_task+0x230)[0x7fcf53d39ac0] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_notify_data_dependencies+0x395)[0x7fcf53d25cc5] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(starpu_data_release_on_node+0xa2)[0x7fcf53d67532] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(+0x83355)[0x7fcf53d6b355]
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(+0x7d492)[0x7fcf53d65492]
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_create_request_to_fetch_data+0x726)[0x7fcf53d52016] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_fetch_data_on_node+0xf4)[0x7fcf53d52bb4] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(+0x7d38f)[0x7fcf53d6538f]
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_handle_job_termination+0x527)[0x7fcf53d0fa97] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_repush_task+0xce)[0x7fcf53d3995e] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_enforce_deps_starting_from_task+0xa7)[0x7fcf53d10497] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_notify_cg+0x399)[0x7fcf53d1fde9] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_notify_cg_list+0x120)[0x7fcf53d20070] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_notify_dependencies+0x37)[0x7fcf53d202f7] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_handle_job_termination+0x1e5)[0x7fcf53d0f755] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(+0x6bebe)[0x7fcf53d53ebe]
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_fetch_nowhere_task_input+0x270)[0x7fcf53d54150] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_repush_task+0x105)[0x7fcf53d39995] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_enforce_deps_starting_from_task+0xa7)[0x7fcf53d10497] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_notify_cg+0x399)[0x7fcf53d1fde9] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_notify_cg_list+0x120)[0x7fcf53d20070] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_notify_dependencies+0x37)[0x7fcf53d202f7] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_handle_job_termination+0x1e5)[0x7fcf53d0f755] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_cpu_driver_run_once+0x576)[0x7fcf53d8f946] 
>
> /opt/starpu-1.2.1-cuda/lib/libstarpu-1.2.so.1(_starpu_cpu_worker+0x4d)[0x7fcf53d8fedd] 
>
> /lib/x86_64-linux-gnu/libpthread.so.0(+0x76da)[0x7fcf5634c6da]
> /lib/x86_64-linux-gnu/libc.so.6(clone+0x5f)[0x7fcf568a617f]
>
> [starpu][_starpu_select_src_node][assert failure] The data for the 
> handle 0x558ecb176050 is requested, but the handle does not have a 
> valid value. Perhaps some initialization task is missing?
>
> simple: datawizard/coherency.c:66: _starpu_select_src_node: Assertion 
> `src_node_mask != 0' failed.
>
> Any idea ? I'll try to do a small example during the WE or next week 
> to reproduce it.
>
> Thanks
> Mathieu


--
--
Mathieu Faverge
Maitre de conférence / Associate Professor
Institut Polytechnique de Bordeaux - ENSEIRB-Matmeca
INRIA Bordeaux - Sud-Ouest, HiePACS Team
200 avenue de la vielle tour
33405 Talence Cedex
Phone: (+33) 5 24 57 40 73