WP7162 Arnab, Dave:
This morning we upgraded h1lsc0 to a faster model (same model as h1suse[x,y]). The reason for the upgrade is not that we need the faster cores per-se, rather we need the additional cores provided to run the new h1sqz LSC squeezer model. The original was a 6 core machine, allowing 4 user models. The new is a 10 core machine, allowing 8 user models.
To expedite the install, we took the DTS x1susex computer, added a second GeFanuc 5565 card and used that for h1lsc0.
Unfortunately despite our best efforts, the upgrade glitched the corner station Dolphin fabric, and the models had to be restarted on all the Dolphin'ed corner station front ends, which includes the PSL.
We have verified that X-Arm RFM IPC signals go to ETMX and Y-Arm to ETMY.
The h1omc model sends DARM_CTRL to ETMX with a matrix element of +1.0 and to ETMY with an element of -1.0. The DARM_CTRL signal is currently the CAL_LINE_SUM signal, a ~30Hz sine wave with a small amplitude of 0.4 counts. The attached dataviewer plot shows the sending trace (CH3: H1:LSC-CAL_LINE_SUM) the receiver on h1susetmx (CH4: H1:SUS-ETMX_L3_ISCINF_L_IN1) and the receiver on h1susetmy (Ch5: H1:SUS-ETMY_L3_ISCINF_L_IN1). The plot is 1/16th of a second on the time axis. As can be seen, ETMX is in phase with CAL_LINE_SUM and ETMY is 180deg out of phase.
The relevant part of h1omc model and the matrix settings are shown in an attachment.
To be absolutely sure of which Dolphin port the cable should be connected to, we drove out to EY and verified with h1susey.
Model processing time changes resulting from computer upgrade (see attached minute trend plot).
Ch1: h1ioplsc0. Did not noticably speed up, in fact looks like it may have slowed by 1uS. min-max range has tightened up.
Ch2: h1lsc: Sped up from 38 +/- 4uS to 25 +/- 0uS (12us (32%) faster with very little jitter)
Ch3: h1omc: Sped up from 22 +/-2uS to 15 +/-0uS (7uS (32%) faster with very little jitter)
Ch4: h1lscaux: Sped up from 19 +/-1uS to 15 +/-0uS (4uS (21%) faster with very little jitter)
Ch5: h1omcpi: Sped up from 8 +/-1uS to 6 +/0uS (2uS (25%) faster with no jitter)