PPPM kspace error

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1

Dear Sir,
when i m working with "ewald " in kspace_style, in lammps my job is working well.
but when i try to put a run with PPPM i receive following error.
i have just update my libfftw3 .
Thanks in advance.
y forcefield is

pair_style lj/cut/coul/long 10 8

kspace_style pppm 1e-4

error:

Setting up run …
[safaei-Vostro-1320:04735] *** Process received signal ***
[safaei-Vostro-1320:04735] Signal: Segmentation fault (11)
[safaei-Vostro-1320:04735] Signal code: (128)
[safaei-Vostro-1320:04735] Failing at address: (nil)
[safaei-Vostro-1320:04735] [ 0] [0xb770140c]
[safaei-Vostro-1320:04735] [ 1] /usr/lib/i386-linux-gnu/libfftw3.so.3(+0xd560b) [0xb75da60b]
[safaei-Vostro-1320:04735] [ 2] /usr/lib/i386-linux-gnu/libfftw3.so.3(+0x1dacc) [0xb7522acc]
[safaei-Vostro-1320:04735] [ 3] /usr/lib/i386-linux-gnu/libfftw3.so.3(+0x1b59c) [0xb752059c]
[safaei-Vostro-1320:04735] [ 4] /usr/lib/i386-linux-gnu/libfftw3.so.3(+0x20e43) [0xb7525e43]
[safaei-Vostro-1320:04735] [ 5] /usr/lib/i386-linux-gnu/libfftw3.so.3(+0x1ad2e) [0xb751fd2e]
[safaei-Vostro-1320:04735] [ 6] /usr/lib/i386-linux-gnu/libfftw3.so.3(fftw_execute_dft+0x34) [0xb75c72a4]
[safaei-Vostro-1320:04735] [ 7] lammps-daily(fft_3d+0x61) [0x82c7dc1]
[safaei-Vostro-1320:04735] [ 8] lammps-daily(_ZN9LAMMPS_NS4PPPM10poisson_ikEv+0x59) [0x89b3779]
[safaei-Vostro-1320:04735] [ 9] lammps-daily(_ZN9LAMMPS_NS4PPPM7computeEii+0xd1) [0x89b7cb1]
[safaei-Vostro-1320:04735] [10] lammps-daily(_ZN9LAMMPS_NS6Verlet5setupEv+0x294) [0x8a7d884]
[safaei-Vostro-1320:04735] [11] lammps-daily(_ZN9LAMMPS_NS3Run7commandEiPPc+0x326) [0x8a513c6]
[safaei-Vostro-1320:04735] [12] lammps-daily(_ZN9LAMMPS_NS5Input15command_creatorINS_3RunEEEvPNS_6LAMMPSEiPPc+0x30) [0x84370b0]
[safaei-Vostro-1320:04735] [13] lammps-daily(_ZN9LAMMPS_NS5Input15execute_commandEv+0x784) [0x8435be4]
[safaei-Vostro-1320:04735] [14] lammps-daily(_ZN9LAMMPS_NS5Input4fileEv+0x2a7) [0x8436d17]
[safaei-Vostro-1320:04735] [15] lammps-daily(main+0x54) [0x81557c4]
[safaei-Vostro-1320:04735] [16] /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0xb70db935]
[safaei-Vostro-1320:04735] [17] lammps-daily() [0x8159751]
[safaei-Vostro-1320:04735] *** End of error message ***
Segmentation fault (core dumped)

2

Dear Sir,
when i m working with "ewald " in kspace_style, in lammps my job is working
well.
but when i try to put a run with PPPM i receive following error.
i have just update my libfftw3 .

there are multiple possible reasons for this. you have to
systematically narrow it down.

you can test for whether there is a problem with your input by testing
with the rhodo input from the bench directory that is bundled with
LAMMPS (or some of the examples that use pppm).
you can test for whether there is a problem with how you use FFTW, by
compiling without (and using -DFFT_NONE instead).

axel.

Thanks in advance.
y forcefield is

pair_style lj/cut/coul/long 10 8

kspace_style pppm 1e-4

this is *far* too little information. problems are usually in the most
unexpected places.