[petsc-users] Could be a bug on hypre with petsc

[Sun, Hui]

I'm basically solving Poisson, and using valgrind to check memory issues. I set pctype to PCHYPRE. It works fine if I use one core. But if I use two cores, it gives me the following error messages about the memory, and then it computes results fine. It seems that it has to do with hypre, for if I set pctype to something else such as PCGAMG or PCJACOBI, it does not output any error message at all, regardless of one core or two cores. By the way, I use DM objects for the matrix and ksp.


==59097== Syscall param writev(vector[...]) points to uninitialised byte(s)

==59097==    at 0x2F19FF2: writev (in /usr/lib/system/libsystem_kernel.dylib)

==59097==    by 0x2AF470D: MPIDU_Sock_writev (sock_immed.i:610)

==59097==    by 0x2ADE3E5: MPIDI_CH3_iStartMsgv (ch3_istartmsgv.c:110)

==59097==    by 0x2ACEEF8: MPIDI_CH3_EagerContigSend (ch3u_eager.c:182)

==59097==    by 0x2AD556F: MPID_Send (mpid_send.c:143)

==59097==    by 0x2920057: MPI_Send (send.c:127)

==59097==    by 0x1A712B1: hypre_MPI_Send (mpistubs.c:988)

==59097==    by 0x1A6E77B: hypre_DataExchangeList (exchange_data.c:392)

==59097==    by 0x194D7C1: hypre_NewCommPkgCreate_core (new_commpkg.c:267)

==59097==    by 0x195108B: hypre_MatvecCommPkgCreate (par_csr_communication.c:478)

==59097==    by 0x192020B: hypre_BoomerAMGCreateS (par_strength.c:190)

==59097==    by 0x189D6AD: hypre_BoomerAMGSetup (par_amg_setup.c:883)

==59097==    by 0x187BD7A: HYPRE_BoomerAMGSetup (HYPRE_parcsr_amg.c:52)

==59097==    by 0x11EFCE6: PCSetUp_HYPRE (hypre.c:157)

==59097==    by 0x12766D4: PCSetUp (precon.c:918)

==59097==    by 0x1385670: KSPSetUp (itfunc.c:330)

==59097==    by 0x138798B: KSPSolve (itfunc.c:542)

==59097==    by 0x10003C854: fourPoissonSolve (FourPoisson3D.h:383)

==59097==    by 0x1000DEA42: main (test.c:473)

==59097==  Address 0x100a295d8 is 8 bytes inside a block of size 28 alloc'd

==59097==    at 0xC258: malloc (vg_replace_malloc.c:300)

==59097==    by 0x1A6F501: hypre_MAlloc (hypre_memory.c:62)

==59097==    by 0x1A6DDBA: hypre_DataExchangeList (exchange_data.c:212)

==59097==    by 0x194D7C1: hypre_NewCommPkgCreate_core (new_commpkg.c:267)

==59097==    by 0x195108B: hypre_MatvecCommPkgCreate (par_csr_communication.c:478)

==59097==    by 0x192020B: hypre_BoomerAMGCreateS (par_strength.c:190)

==59097==    by 0x189D6AD: hypre_BoomerAMGSetup (par_amg_setup.c:883)

==59097==    by 0x187BD7A: HYPRE_BoomerAMGSetup (HYPRE_parcsr_amg.c:52)

==59097==    by 0x11EFCE6: PCSetUp_HYPRE (hypre.c:157)

==59097==    by 0x12766D4: PCSetUp (precon.c:918)

==59097==    by 0x1385670: KSPSetUp (itfunc.c:330)

==59097==    by 0x138798B: KSPSolve (itfunc.c:542)

==59097==    by 0x10003C854: fourPoissonSolve (FourPoisson3D.h:383)

==59097==    by 0x1000DEA42: main (test.c:473)


Best,

Hui
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