A weird problem in $TABLE output when using nonmem 7.4.3 with MPI

Hi all, Glad to join the community recently. I ran into a weird problem in $TABLE output when I was running a PopPK model using nonmem 7.4.3 with MPI: a few values of the first record (such as ID, EVID, CMT, TIME) erroneously come from the last individual in the output table (see Table 1 and Table 2 below). Table 1. Example of the first few rows of $TABLE output when running NONMEM with mpi TABLE NO. 1 STUDY ID PT EVID CMT TIME DV TSLD DOSEMG IV FED WTKG TVCL TVVC TVVP1 TVQ1 TVVP2 3.10E+03 9.27E+02 5.27E+06 1.00E+00 2.00E+00 0.00E+00 0.00E+00 0.00E+00 6.00E+02 0.00E+00 0.00E+00 7.00E+01 1.34E+02 4.62E+01 5.40E+02 8.63E+01 2.59E+02 1.01E+03 7.90E+01 1.00E+06 0.00E+00 1.00E+00 1.02E+00 1.99E+00 1.02E+00 1.50E+02 1.00E+00 1.00E+00 6.14E+01 1.34E+02 4.62E+01 5.40E+02 8.63E+01 2.59E+02 1.01E+03 7.90E+01 1.00E+06 0.00E+00 1.00E+00 1.25E+00 1.16E+00 1.25E+00 1.50E+02 1.00E+00 1.00E+00 6.14E+01 1.34E+02 4.62E+01 5.40E+02 8.63E+01 2.59E+02 1.01E+03 7.90E+01 1.00E+06 0.00E+00 1.00E+00 1.50E+00 8.38E-01 1.50E+00 1.50E+02 1.00E+00 1.00E+00 6.14E+01 1.34E+02 4.62E+01 5.40E+02 8.63E+01 2.59E+02 Table 2. Example of the last few rows of $TABLE output when running NONMEM with mpi TABLE NO. 1 STUDY ID PT EVID CMT TIME DV TSLD DOSEMG IV FED WTKG TVCL TVVC TVVP1 TVQ1 TVVP2 3.10E+03 9.27E+02 5.27E+06 1.00E+00 2.00E+00 0.00E+00 0.00E+00 0.00E+00 6.00E+02 0.00E+00 0.00E+00 7.00E+01 8.98E+01 4.62E+01 2.23E+02 4.07E+01 2.59E+02 3.10E+03 9.27E+02 5.27E+06 1.00E+00 5.00E+00 0.00E+00 0.00E+00 0.00E+00 6.00E+02 0.00E+00 0.00E+00 7.00E+01 8.98E+01 4.62E+01 2.23E+02 4.07E+01 2.59E+02 3.10E+03 9.27E+02 5.27E+06 0.00E+00 1.00E+00 1.15E+00 7.82E-01 1.15E+00 6.00E+02 0.00E+00 0.00E+00 7.00E+01 8.98E+01 4.62E+01 2.23E+02 4.07E+01 2.59E+02 3.10E+03 9.27E+02 5.27E+06 0.00E+00 1.00E+00 3.08E+00 1.63E+00 3.08E+00 6.00E+02 0.00E+00 0.00E+00 7.00E+01 8.98E+01 4.62E+01 2.23E+02 4.07E+01 2.59E+02 Interestingly, there is no such problem when I run the model without MPI (see Table 3 below). Table 3. Example of the first few rows of $TABLE output when running NONMEM without mpi TABLE NO. 1 STUDY ID PT EVID CMT TIME DV TSLD DOSEMG IV FED WTKG TVCL TVVC TVVP1 TVQ1 TVVP2 1.01E+03 7.90E+01 1.00E+06 1.00E+00 1.00E+00 0.00E+00 0.00E+00 0.00E+00 1.50E+02 1.00E+00 1.00E+00 6.14E+01 1.34E+02 4.62E+01 5.40E+02 8.63E+01 2.59E+02 1.01E+03 7.90E+01 1.00E+06 0.00E+00 1.00E+00 1.02E+00 1.99E+00 1.02E+00 1.50E+02 1.00E+00 1.00E+00 6.14E+01 1.34E+02 4.62E+01 5.40E+02 8.63E+01 2.59E+02 1.01E+03 7.90E+01 1.00E+06 0.00E+00 1.00E+00 1.25E+00 1.16E+00 1.25E+00 1.50E+02 1.00E+00 1.00E+00 6.14E+01 1.34E+02 4.62E+01 5.40E+02 8.63E+01 2.59E+02 1.01E+03 7.90E+01 1.00E+06 0.00E+00 1.00E+00 1.50E+00 8.38E-01 1.50E+00 1.50E+02 1.00E+00 1.00E+00 6.14E+01 1.34E+02 4.62E+01 5.40E+02 8.63E+01 2.59E+02 Have anyone ever encountered the same problem? What could possibly the reason for the problem before? And how can I avoid such a problem? Thanks in advance! Best regards, Cris Zhang Sinovant Sciences