From 65aa334351f3be6e63b16aa7378c96931905aef0 Mon Sep 17 00:00:00 2001 From: Rudolfs Petrovs <49215407+rudolfspetrovs@users.noreply.github.com> Date: Sun, 10 Jan 2021 18:26:38 +0000 Subject: [PATCH] PKG Add optlang package (#1093) --- packages/glpk/meta.yaml | 13 +++++++++ packages/optlang/meta.yaml | 19 +++++++++++++ packages/optlang/test_optlang.py | 40 ++++++++++++++++++++++++++ packages/swiglpk/meta.yaml | 20 +++++++++++++ packages/swiglpk/test_swiglpk.py | 48 ++++++++++++++++++++++++++++++++ 5 files changed, 140 insertions(+) create mode 100644 packages/glpk/meta.yaml create mode 100644 packages/optlang/meta.yaml create mode 100644 packages/optlang/test_optlang.py create mode 100644 packages/swiglpk/meta.yaml create mode 100644 packages/swiglpk/test_swiglpk.py diff --git a/packages/glpk/meta.yaml b/packages/glpk/meta.yaml new file mode 100644 index 000000000..c344a52eb --- /dev/null +++ b/packages/glpk/meta.yaml @@ -0,0 +1,13 @@ +package: + name: glpk + version: 4.65 + +source: + sha256: 4281e29b628864dfe48d393a7bedd781e5b475387c20d8b0158f329994721a10 + url: https://ftp.gnu.org/gnu/glpk/glpk-4.65.tar.gz + +build: + library: true + script: | + CFLAGS="-fPIC" emconfigure ./configure --prefix=$PWD + emmake make -j ${PYODIDE_JOBS:-3} diff --git a/packages/optlang/meta.yaml b/packages/optlang/meta.yaml new file mode 100644 index 000000000..0d0899808 --- /dev/null +++ b/packages/optlang/meta.yaml @@ -0,0 +1,19 @@ +package: + name: optlang + version: 1.4.7 + +source: + sha256: 0c9d7aae9babd5f9eac296b6f975a0e475545ac7ced9790f43796671157eb017 + url: https://files.pythonhosted.org/packages/47/85/9d028fbc971b1db9b8c3e58072237e8a7fda5cd936dd73f0b179805b5464/optlang-1.4.7.tar.gz + +requirements: + run: + - sympy + - six + - swiglpk + +test: + imports: + - optlang + - optlang.glpk_interface + - optlang.symbolics \ No newline at end of file diff --git a/packages/optlang/test_optlang.py b/packages/optlang/test_optlang.py new file mode 100644 index 000000000..1ad521485 --- /dev/null +++ b/packages/optlang/test_optlang.py @@ -0,0 +1,40 @@ +import pytest + + +def test_optlang(selenium): + selenium.load_package("optlang") + selenium.run( + """ + from optlang import Model, Variable, Constraint, Objective + + # All the (symbolic) variables are declared, with a name and optionally a lower and/or upper bound. + x1 = Variable('x1', lb=0) + x2 = Variable('x2', lb=0) + x3 = Variable('x3', lb=0) + + # A constraint is constructed from an expression of variables and a lower and/or upper bound (lb and ub). + c1 = Constraint(x1 + x2 + x3, ub=100) + c2 = Constraint(10 * x1 + 4 * x2 + 5 * x3, ub=600) + c3 = Constraint(2 * x1 + 2 * x2 + 6 * x3, ub=300) + + # An objective can be formulated + obj = Objective(10 * x1 + 6 * x2 + 4 * x3, direction='max') + + # Variables, constraints and objective are combined in a Model object, which can subsequently be optimized. + model = Model(name='Simple model') + model.objective = obj + model.add([c1, c2, c3]) + + status = model.optimize() + """ + ) + result = selenium.run("model.status") + assert result == "optimal" + result = selenium.run("model.objective.value") + assert result == pytest.approx(733.3333, abs=1e-4) + result = selenium.run("model.variables['x1'].primal") + assert result == pytest.approx(33.3333, abs=1e-4) + result = selenium.run("model.variables['x2'].primal") + assert result == pytest.approx(66.6667, abs=1e-4) + result = selenium.run("model.variables['x3'].primal") + assert result == pytest.approx(0.0000, abs=1e-4) diff --git a/packages/swiglpk/meta.yaml b/packages/swiglpk/meta.yaml new file mode 100644 index 000000000..f149ff16a --- /dev/null +++ b/packages/swiglpk/meta.yaml @@ -0,0 +1,20 @@ +package: + name: swiglpk + version: 4.65.1 + +source: + sha256: 0216db2930a6fe2c07ac7f0e28e76e9a2711a647836a3a4067113091c7ae221e + url: https://files.pythonhosted.org/packages/0e/c9/9b0ec3e2ca942b6d067e84e52d72818fa9c3a1a1524671fcbec4841b54b2/swiglpk-4.65.1.tar.gz + extras: + - [../glpk/build/glpk-4.65/src/glpk.h, ./glpk.h] + +build: + ldflags: -L../../../glpk/build/glpk-4.65/src/.libs/ + +requirements: + run: + - glpk + +test: + imports: + - swiglpk diff --git a/packages/swiglpk/test_swiglpk.py b/packages/swiglpk/test_swiglpk.py new file mode 100644 index 000000000..8926e8c1b --- /dev/null +++ b/packages/swiglpk/test_swiglpk.py @@ -0,0 +1,48 @@ +def test_swiglpk(selenium): + selenium.load_package("swiglpk") + selenium.run( + """ + from swiglpk import * + + ia = intArray(1+1000); ja = intArray(1+1000); + ar = doubleArray(1+1000); + lp = glp_create_prob(); + glp_set_prob_name(lp, "sample"); + glp_set_obj_dir(lp, GLP_MAX); + glp_add_rows(lp, 3); + glp_set_row_name(lp, 1, "p"); + glp_set_row_bnds(lp, 1, GLP_UP, 0.0, 100.0); + glp_set_row_name(lp, 2, "q"); + glp_set_row_bnds(lp, 2, GLP_UP, 0.0, 600.0); + glp_set_row_name(lp, 3, "r"); + glp_set_row_bnds(lp, 3, GLP_UP, 0.0, 300.0); + glp_add_cols(lp, 3); + glp_set_col_name(lp, 1, "x1"); + glp_set_col_bnds(lp, 1, GLP_LO, 0.0, 0.0); + glp_set_obj_coef(lp, 1, 10.0); + glp_set_col_name(lp, 2, "x2"); + glp_set_col_bnds(lp, 2, GLP_LO, 0.0, 0.0); + glp_set_obj_coef(lp, 2, 6.0); + glp_set_col_name(lp, 3, "x3"); + glp_set_col_bnds(lp, 3, GLP_LO, 0.0, 0.0); + glp_set_obj_coef(lp, 3, 4.0); + ia[1] = 1; ja[1] = 1; ar[1] = 1.0; # a[1,1] = 1 + ia[2] = 1; ja[2] = 2; ar[2] = 1.0; # a[1,2] = 1 + ia[3] = 1; ja[3] = 3; ar[3] = 1.0; # a[1,3] = 1 + ia[4] = 2; ja[4] = 1; ar[4] = 10.0; # a[2,1] = 10 + ia[5] = 3; ja[5] = 1; ar[5] = 2.0; # a[3,1] = 2 + ia[6] = 2; ja[6] = 2; ar[6] = 4.0; # a[2,2] = 4 + ia[7] = 3; ja[7] = 2; ar[7] = 2.0; # a[3,2] = 2 + ia[8] = 2; ja[8] = 3; ar[8] = 5.0; # a[2,3] = 5 + ia[9] = 3; ja[9] = 3; ar[9] = 6.0; # a[3,3] = 6 + glp_load_matrix(lp, 9, ia, ja, ar); + glp_simplex(lp, None); + Z = glp_get_obj_val(lp); + x1 = glp_get_col_prim(lp, 1); + x2 = glp_get_col_prim(lp, 2); + x3 = glp_get_col_prim(lp, 3); + glp_delete_prob(lp); + """ + ) + result = selenium.run("""'Z = %g; x1 = %g; x2 = %g; x3 = %g' % (Z, x1, x2, x3)""") + assert result == "Z = 733.333; x1 = 33.3333; x2 = 66.6667; x3 = 0"