CAM4/5 memory problem with different task number

Dear all, I have a question seems like cam memory leak.I was using CESM1.2.2 -compset B_1850_CN -res T31_gx3v7.  The model can run with 48 tasks for each component, However, if i increase the number of tasks to e.g. 64, 96 etc. The model always stopped at CAM initiazation, showing the following error:forrtl: severe (408): fort: (2): Subscript #2 of the array PHIS has value 1 which is greater than the upper bound of 0 Image              PC                Routine            Line        Sourcecesm.exe           00000000014F2BA4  inidat_mp_process         646  inidat.F90cesm.exe           00000000014E4389  inidat_mp_read_in         203  inidat.F90cesm.exe           00000000011658CF  startup_initialco          54  startup_initialconds.F90cesm.exe           00000000005D39E2  inital_mp_cam_ini          60  inital.F90cesm.exe           0000000000503294  cam_comp_mp_cam_i         164  cam_comp.F90
Any idea why this error happened?  Thanks very muchcesm.exe           00000000004EFD9D  atm_comp_mct_mp_a         276  atm_comp_mct.F90cesm.exe           0000000000421AC4  ccsm_comp_mod_mp_        1058  ccsm_comp_mod.F90cesm.exe           000000000046ACFE  MAIN__                     90  ccsm_driver.F90cesm.exe           0000000000413436  Unknown               Unknown  Unknownlibc.so.6          00007F55014ABD1D  Unknown               Unknown  Unknown cesm.exe           0000000000413329  Unknown               Unknown  Unknown
 
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