benjaminjurke / cohomcalg Goto Github PK
View Code? Open in Web Editor NEWA software package for computation of sheaf cohomologies for line bundles on toric varieties.
License: GNU General Public License v3.0
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terminate called after throwing an instance of 'std::system_error' on 32-bit ARM
The following error is occurring during the continuous integration tests of the Debian cohomcalg package on armhf and armel:
cohomCalg v0.32
(compiled for Linux/Unix Unrecognized)
author: Benjamin Jurke ([email protected])
Based on the algorithm detailed in arXiv:1003.5217
cohomCalg v0.32
(compiled for Linux/Unix Unrecognized)
author: Benjamin Jurke ([email protected])
Based on the algorithm detailed in arXiv:1003.5217
Reading in the input file '/usr/share/doc/cohomcalg-common/examples/P31SU7.in'...
Input data:
===========
The described ambient space is of dimension 5.
There are 14 coordinates, each having 9 GLSM charges:
coord 1: s1 | 0 0 -1 1 0 0 0 0 0
coord 2: s2 | 0 0 0 -1 1 0 0 0 0
coord 3: s3 | 0 0 0 0 -1 1 0 0 0
coord 4: s4 | 0 0 0 0 0 -1 1 0 0
coord 5: s5 | 0 0 0 0 0 0 -1 1 0
coord 6: s6 | 0 0 0 0 0 0 0 -1 1
coord 7: s7 | 0 0 0 0 0 0 0 0 -1
coord 8: v1 | 1 0 -1 0 0 0 0 0 0
coord 9: v2 | 1 0 0 0 0 0 0 0 0
coord 10: v3 | 1 0 0 0 0 0 0 0 0
coord 11: v4 | 1 0 0 0 0 0 0 0 0
coord 12: x | 0 2 0 1 0 1 0 1 0
coord 13: y | 0 3 0 1 1 0 1 0 1
coord 14: z | -4 1 2 0 0 0 0 0 0
There are 29 generators of the Stanley-Reisner ideal:
SRgen 1: s2*y
SRgen 2: s4*y
SRgen 3: s6*y
SRgen 4: x*z
SRgen 5: s1*x
SRgen 6: s2*x
SRgen 7: s3*x
SRgen 8: s4*x
SRgen 9: s5*x
SRgen 10: s3*z
SRgen 11: s5*z
SRgen 12: s7*z
SRgen 13: s1*v1
SRgen 14: s2*v1
SRgen 15: s3*v1
SRgen 16: s4*v1
SRgen 17: s5*v1
SRgen 18: s7*v1
SRgen 19: s1*s4
SRgen 20: s1*s5
SRgen 21: s1*s6
SRgen 22: s1*s7
SRgen 23: s2*s5
SRgen 24: s2*s6
Usage and generation of intermediate monomial files deactivated.
Starting computation of secondary sequences...
SRgen 25: s2*s7
SRgen 26: s3*s6
SRgen 27: s3*s7
SRgen 28: s5*s6
SRgen 29: v2*v3*v4
There is 1 ambient space sheaf cohomology requested:
cohom 1: H^i(A; O( 0, 0, 0, 0, 0, 0, 0, 0, 0 ))
terminate called after throwing an instance of 'std::system_error'
what(): Resource temporarily unavailable
threads on machines with many cores
Issue 1: When running examples under Macaulay2, we limit memory to 850MB. A certain example takes 8 seconds and less than 100MB to compute on a virtual CentOS machine with 1 core, but on a physical CentOS machine with 88 cores, cohomcalg runs out of memory after creating 42 threads when given 2GB. Something should be done about that.
Issue 2: Patching cohomcalg to limit the number of workers to 2 eliminates that problem, but then it takes 13 real minutes to consume 16 seconds of CPU time, even though nothing else is running. What would explain the threads not getting any time slices?
Logo has non-free license
Hello!
cohomCalg was rejected from Debian because the lightbulb used in the logo is distributed under the Creative Commons BY-NC-SA license. Debian considers this license "non-free" because of the "NonCommerical" clause.
I'm getting around this for now by removing the logo from the manual in the Debian package. But would there be any interest in changing the logo for future releases?
Thanks!
Error encountered in the computation of cohomCalg Koszul Extension
Dear Benjamin,
Attached screenshot is an error I encountered while using cohomCalg Koszul Extension to compute the hodge diamond of a 2d hypersurface inside 3d toric variety. Since the weight of hypersuface vanishing polynomial is corresponding to the weight of anti-canonical divisor, so I would expect the output shows me a hodge diamond of K3 surface, but I encountered such a list of error as the attached screenshot indicates.
Thanks a lot for reading this message and thank your for your effort on developing this software so far.
Best,
Muyang
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