Digital Equipment DECmpp 12000/Sx 100, Руководство по обслуживанию оборудования

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pe_macro(1)
If the test detects an error, it prints an error message giving the router
offset at which the error occurred, the nature of the error, the expected
and actual result.
rt2g
: All PEs Send/Fetch To Self (m-machine busy) — In this test each
PE uses the router to send to and fetch from itself at the same time
that the m-machine is moving data from PReg to PMem. With all PEs
attempting to do this, it takes 16 tries before all the connections have
been made and data transferred.
The test repeats this for 1-bit, 8-bit, 16-bit, 32-bit and 64-bit transfers.
If it detects an error, the test prints an error message giving the
attempted operation, the expected result and the actual result. This
is an explanation of the result:
* Error message #1: This is the number of operations before all PEs
had completed their router transfer using the single-bit commands.
Only 1/16 of the PEs can be connected at any one time, so it takes 16
operations to complete.
* Error message #2: This is the exclusive OR comparison of the data
sent over the router with the data received at the other end. 16 bits of
data were sent using 16
rsend1
commands. Any bit set in this word
indicates an erroneous bit in the data received.
* Error message #3: This is the exclusive OR comparison of the data
fetched over the router with the data received. 16 bits of data
were fetched using 16
rfetch1
commands. Any bit set in this word
indicates an erroneous bit in the data received.
* Error message #4: This is the exclusive OR comparison of the
expected flag bits with the actual flag bits set during the rsend and
the rfetch operations. The position of the bits in the word indicate
which flag is in question and when it was noted. This word does not
show the actual state of the flag bits, it only indicateswhich flags were
in error.
0 f f f f ff r r r r r t t t t t 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
After ropen
After rclose
rsend16
rfetch16 After
After
Before ropen
0
MPP_FIG_290
f
c
9 6 3
0
* Error message #5: This is the number of operations before all PEs
had completed their router transfer using the 8-bit commands. Only
1/16 of the PEs can be connected at any one time, so it takes 16
operations to complete.
* Error message #6: This is the exclusive OR comparison of the data
sent over the router with the data received at the other end. 16 bits of
data were sent using two
rsend8 commands. Any bit set in this word
indicates an erroneous bit in the data received.
Data Parallel Unit Reference Pages B–51