This PC is running Ubuntu 14.04 LTS and all other PCs are running Window. The PC with four processors shows 12 on the Ubuntu PC only. It is running Windows 7 HP BOINC 7.2.42 and BT 1.59 (which I just updated from BT 1.58 and still shows 12 running WU)
Project From Ubuntu PC:
World Community Grid Multiple Sclerosis work 15,733,049.2 20,529.53 6,928,778.6 4,177.71 100 (98.81%) 111 / 0 18:17:52 (12) / - Zoot
Tasks From Ubuntu PC:
World Community Grid 7.16 faah faah829853_ZINC22793699_1_x4GVMbINleB_00_0 06:35:18 (05:51:56) 89.03 98.473 00:05:56 6/15/2014 12:22:59 PM [18] 00:00:52 Running Zoot
World Community Grid 7.16 faah faah829881_ZINC09177208_1_x4GVMbINleB_00_0 05:31:06 (05:13:00) 94.54 97.319 00:08:38 6/15/2014 3:19:36 PM [17] 00:01:14 Running Zoot
World Community Grid 7.16 faah faah829883_ZINC36329869_1_x4GVMbINleB_00_0 04:34:03 (04:21:02) 95.25 89.849 00:24:59 6/15/2014 3:31:32 PM [18] 00:00:05 Running Zoot
World Community Grid 7.16 faah faah829881_ZINC09280837_1_x4GVMbINleB_00_0 04:52:13 (04:23:16) 90.10 83.240 00:40:46 6/15/2014 3:19:37 PM [17] 00:00:41 Running Zoot
World Community Grid 7.16 faah faah829887_ZINC16262351_1_x4GVMbINleB_00_0 03:27:39 (03:15:43) 94.25 80.085 00:48:37 6/15/2014 3:54:43 PM [16] 00:01:04 Running Zoot
World Community Grid 7.20 fahv FAHV_x3VQ7-dc_0758391_0330_0 00:42:51 (00:34:33) 80.62 67.000 00:29:55 6/15/2014 5:54:07 PM [11] 00:00:58 Running Zoot
World Community Grid 7.20 fahv FAHV_x3VQ7-dc_0758341_0406_0 00:39:38 (00:31:40) 79.91 66.667 00:31:12 6/15/2014 5:56:35 PM [12] 00:00:17 Running Zoot
World Community Grid 7.20 fahv FAHV_x3VQ7-dc_0758373_0434_0 00:41:44 (00:31:28) 75.40 66.087 00:30:53 6/15/2014 5:54:07 PM [12] 00:00:36 Running Zoot
World Community Grid 7.20 fahv FAHV_x3AVMb-dc_0756803_0255_1 00:26:08 (00:20:50) 79.77 55.882 00:54:10 6/15/2014 5:58:44 PM [9] 00:01:09 Running Zoot
World Community Grid 7.16 faah faah829902_ZINC05072174_1_x4GVMbINleB_00_0 01:13:18 (01:08:02) 92.81 44.541 02:40:28 6/15/2014 5:27:45 PM [16] 00:00:05 Running Zoot
World Community Grid 7.16 faah faah829901_ZINC22799204_1_x4GVMbINleB_00_0 01:36:35 (01:29:01) 92.17 29.349 02:41:03 6/15/2014 5:23:36 PM [18] 00:00:59 Running Zoot
World Community Grid 7.20 fahv FAHV_x3VQ4-dc_0758127_0192_1 00:05:37 (00:04:53) 86.89 8.667 01:14:14 6/15/2014 6:18:59 PM [1] 00:01:10 Running Zoot
World Community Grid 7.20 fahv 73 [Tasks], double click to expand - (-) 0.00 0.000 04d,02:28:20 6/9/2014 11:05:45 AM Ready to start Zoot
World Community Grid 7.16 faah 26 [Tasks], double click to expand - (-) 0.00 0.000 04d,12:47:09 6/15/2014 6:21:59 PM Ready to start Zoot
The number of tasks isn't necessarily the same as the number of cores.
Check the BoincTasks Computers tab, right mouse keys select computer properties on a line.
It shows the number of processors.
But the better way is checking the messages at the beginning.
On the machine with 12 running tasks check how many exe are actually running. If BoincTasks shows them they should be running.
In the Tasks tab check if the progress is actually moving on all tasks.
Clicking in BoincTasks Tasks, right mouse properties shows the Process ID.